Primary 4 Mathematics 
Ace the Exam with 
My 24/7 Personal Tutor 
Detailed Explanation of ALL Questions 
by Tutor in Virtual Classroom 
Consulting Editor: Dr Zhang Yong
© Outreach Edusys Pte Ltd 
ALL RIGHTS RESERVED. No part of this book and the 
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transmitted in any form or by any means, electronic or 
mechanical, including photocopying, CD duplication, 
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system, without permission in writing from the 
Publisher. 
i i 
First Published 2010 
ISBN: 978-981-4275-15-6 
Published by: 
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Preface 
This book is written to assist pupils in preparing for the Primary 4 
Mathematics examinations. There are a total of 10 specially crafted 
examination style papers. The main features of the papers are as 
follows. 
1. Questions are modelled after examination papers set by top well 
known Singapore schools. 
2. Questions are crafted to highlight common misconceptions in each of 
ii i 
the topics. 
This book comes with a multimedia CDROM. The CDROM contains detailed 
explanations of every question in each of the papers by our teacher. These 
lessons ensure pupils understand the methods that are used to solve each of 
the questions 
Outreach Book Alive series brings the “tuition teacher” to you at zero 
cost. 
You may also want to try our online programme. These are interactive 
“diagnostic” modules consisting of multiple choice questions. The 
incorrect options to each question are carefully crafted based on 
specific misconception in learners. If your child submit a wrong answer, 
our system will dynamically diagnose your child’s problem and provide an 
explanation on why the answer is wrong, and what is the correct way to 
solve such questions. 
Visit http://www.orlesson.org today.
iv 
Contents 
Semestral Assessment 1 Paper 1 1 
Semestral Assessment 1 Paper 2 16 
Semestral Assessment 1 Paper 3 30 
Semestral Assessment 1 Paper 4 45 
Semestral Assessment 1 Paper 5 57 
Semestral Assessment 2 Paper 1 70 
Semestral Assessment 2 Paper 2 82 
Semestral Assessment 2 Paper 3 94 
Semestral Assessment 2 Paper 4 108 
Semestral Assessment 2 Paper 5 121 
Suggested Answers 135 
Free Past Year School Exam Papers (from 2004 onwards) for download and 
print. 
Visit http://www.orlesson.org for links and download instructions. 
Subscribe to Outreach Lesson Online Access for hundreds of hours of 
lessons, and thousands of questions. Less than 70 cents a days for unlimited 
access to ALL subjects. For details, visit http://www.orlesson.org.
Semestral Assessment 1 – Mock Paper 1 
Duration: 1 hr 45 min 
Marks 
Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks 
each. For each question, write the number corresponding to the correct option in 
the bracket provided. 
1. Which of the following is not an equivalent fraction of 
4 (2) 
10 (4) 
6 2 = 
1 
2 ? 
5 
(1) 
10 
6 
15 
(3) 
20 
12 
30 
( ) 
2. 59 074 = 50 000 + + 70 + 4. 
(1) 9 (2) 90 
(3) 900 (4) 9000 
( ) 
3. What is the missing number? 
? 
4 
8 
(1) 1 (2) 4 
(3) 25 (4) 50 
( ) 
4. What is the maximum number of 3-digit numbers that can be formed 
using the digits 3, 5, and 7? 
(1) 1 (2) 2 
(3) 3 (4) 6 
( ) 
5. The sum of the two numbers is 6470. The larger number is 580 more 
than the smaller number. What is the larger number? 
(1) 2945 (2) 3525 
(3) 5890 (4) 7050 
( )
6. What is the highest common factor of 40 and 72? 
(1) 4 (2) 5 
(3) 8 (4) 12 
2 
( ) 
7. Find the product of 8 tens and 80 ones. 
(1) 160 (2) 640 
(3) 6400 (4) 8080 
( ) 
8. Elaine has $4800 when rounded off to the nearest hundred. What is the 
greatest possible amount of money she has? 
(1) $4870 (2) $4849 
(3) $4749 (4) $4707 
( ) 
9. A square has a perimeter of 32 m. What is its area? 
(1) 8 m2 (2) 16 m2 
(3) 32 m2 (4) 64 m2 
( ) 
10. Find ‹x in the figure below. 
(1) 330 (2) 570 
(3) 670 (4) 1230 
( ) 
11. Emily and Jason save $5638 together every month. Jason saves $838 
more than Emily. How much will Jason save in a year? 
(1) $38 856 (2) $57 600 
(3) $67 656 (4) $77 712 
( )
1 of a cake and James ate 
2 (4) 
3 
12. Emmy ate 
3 
1 of the remainder. What fraction 
6 
of the cake did they eat altogether? 
(1) 2 
1 (2) 1 
9 
(3) 
9 
4 
9 
( ) 
13. If + + = 82 
+ = 47 
+ = 64 
Find – . 
(1) 17 (2) 18 
(3) 35 (4) 53 
( ) 
14. Jane started walking to school at 9:30 a.m. When she reached school, 
she noticed that the minute hand of her watch had moved 1800 
clockwise. What time did she reach school? 
(1) 10.30 a.m. (2) 10.00 a.m. 
(3) 9.00 a.m. (4) 8.30 a.m. 
( ) 
15. There were 420 people at the movie. 
2 of them were men and the rest 
7 
were women. How many more women than men were there at the movie? 
(1) 60 (2) 120 
(3) 180 (4) 300 
( ) 
Questions 16 to 35 carry 2 marks each. Write your answers in the spaces 
provided. For questions which require units, give your answers in the units stated. 
16. Write fourteen thousand and seventy five in figures.
4 
17. Find the remainder of 8096 ÷7. 
Ans: _____________________ 
18. Subtract 389 from 2247. Round off the answer to the nearest tens. 
Ans: _____________________ 
19. Use all the digits 3, 5, 0, 8 to form the smallest 4-digit number that is 
divisible by 5. 
Ans: _____________________
20. What is the value of X in the number line below? 
5 
Ans: _____________________ 
21. Arrange the following fractions from the smallest to the greatest. 
, 1 
12 
2 
, 3 
9 
, 5 
5 
4 
22. What is the smallest even number that leaves a remainder of 4 when 
divided by 7? 
Ans: _____________________
23. When the minute hand of a clock moves from 8.30 a.m. to 9.15 a.m., how 
11 + + = _________. 
Express the answer as a mixed number. 
6 
many degrees has it moved? 
Ans: _____________________ 
24. 
3 
4 
6 
5 
12 
Ans: _____________________ 
25. The sum of 3 numbers is 125. If one of the numbers is changed from 46 
to 29, what will be the sum of the new set of numbers? 
Ans: _____________________
26. Katie and Daniel saved $400. Katie saved $60 more than Daniel. How 
1 more than Mary. What fraction of 
7 
much money did Katie save? 
Ans: _____________________ 
27. Mary ate 
1 of a pizza and Tom ate 
4 
6 
pizza did they eat altogether? 
Ans: _____________________ 
28. Mr. Lee bought plane tickets for himself and his four children for a 
flight to Japan. He paid a total of $3850. If his adult ticket cost $950, 
how much did each child ticket cost? 
Ans: _____________________
1 km more than Brian. Rachel jogged 
8 
29. Find the value of A and B. 
4 A A 
+ A 6 
B B 3 
Ans: _____________________ 
30. I am a 2-digit number. I am greater than 60 and smaller than 80. I am 
divisible by 7 and 9. What number am I? 
Ans: _____________________ 
31. Brian jogged 
4 km. John jogged 
5 
4 
1 
2 
km more than John. How far did they jog altogether? 
Ans: _____________________
32. Sabrina was at X and facing the school. She then turned 450 anti-clockwise 
3 turn clockwise. Where is she facing now? 
9 
and made a 
4 
Ans: _____________________ 
33. If a factory produces 689 toys each day, how many toys does it produce 
in 3 weeks? 
Ans: _____________________
34. ABCD is a square of sides 22 cm. E, F, G, H are the mid-points of each 
side of the square ABCD. Find the area of EFGH. 
1 0 
Ans: _____________________ 
35. Eight teams are taking part in a football tournament. Each team played 
against every other team once. How many games are played altogether? 
Ans: _____________________
Questions 36 to 45 carry 4 marks each. Show your working clearly in the space 
below each question and write your answers in the spaces provided. 
36. 
Leona bought one dress, one skirt and one T-shirt. The T-shirt cost $15. 
The skirt cost $17 more than the T-shirt. The dress cost twice as much 
as the T-shirt. How much did she spend on the three items? 
1 1 
Ans: _____________________ 
37. Jessie had $1400. If she bought 12 books at $32 each and 24 magazines 
at $13 each, how much had she left? 
Ans: _____________________
3 of his stamps to his sister and 
1 2 
38. Andy gave 
8 
1 of them to his friends. He 
4 
had 720 stamps left. How many stamps did Andy have at first? 
Ans: _____________________ 
39. Mrs. Lee had 30 boxes of cookies which contain 140 cookies each. She 
repacked all the cookies into packets of 9. She sold each packet for $3 
and the remaining cookies at $0.50 each. How much did she collect from 
the sale of cookies altogether? 
Ans: _____________________
40. Jerry had a 3-litre container filled to the brim with water. He poured 
2 of them are blue. 
1 3 
3 
4 
litres out and divided the remaining amount of water equally into 9 
bottles. How much water was there in each bottle? 
Ans: _____________________ 
41. Daisy has some beads. 
9 
1 of them are red and the 
3 
remaining 52 are yellow. How many more yellow beads than blue beads 
does Daisy have? 
Ans: _____________________
42. Book store A has 40 fewer magazines than book store B. If 130 
magazines are transferred from book store B to book store A, there will 
be twice as many magazines in book store A as in book store B. How many 
magazines are there altogether? 
3 of her pocket money and saves the rest. If 
1 4 
Ans: _____________________ 
43. Every month, Annie spends 
7 
she spends $90 every month, how much will she save in 3 years? 
Ans: _____________________
44. There are 128 men at a concert. There are twice as many women as 
there are men and thrice as many children as there are women. If all the 
people at the concert are put into groups of 8, how many groups are 
there together? 
1 5 
Ans: _____________________ 
45. Find the sum of ‹a and ‹b. 
Ans: _____________________ 
--- End of Paper ---
Semestral Assessment 1 – Mock Paper 2 
Duration: 1 hr 45 min 
Marks 
Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks 
each. For each question, write the number corresponding to the correct option in 
the bracket provided. 
1. Round off the sum of 25 787 and 13 469 to the nearest hundred. 
(1) 39 300 (2) 38 960 
(3) 38 900 (4) 38 000 
2 is the same as __________ . 
42 (2) 3 + 
2 (4) 3 – 1 + 
1 6 
( ) 
2. In the number 52 890, the difference in the value of digit 5 and digit 8 
is _________. 
(1) 3 (2) 40 
(3) 4920 (4) 49 200 
( ) 
3. The product of all the factors of 10 is _________. 
(1) 10 (2) 20 
(3) 50 (4) 100 
( ) 
4. 4 + 
3 
(1) 3 
5 
3 
(3) 4 x 
3 
2 
3 
( ) 
5. The difference between two numbers is 84. If the bigger number is 4 
times the smaller number, find the sum of the two numbers. 
(1) 88 (2) 112 
(3) 140 (4) 164 
( )
6. The figure below is made up of 2 squares. What is the perimeter of the 
1 ? 
1 7 
figure? 
(1) 39 (2) 42 
(3) 47 (4) 52 
( ) 
7. What of the following is the best estimate of the angle X? 
(1) 450 (2) 900 
(3) 1200 (4) 2250 
( ) 
8. How many sixths are there in 3 
3 
(1) 20 (2) 19 
(3) 10 (4) 5 
( ) 
9. There are 34 pupils and 4 teachers in each class. How many people are 
there altogether in 20 classes? 
(1) 38 (2) 80 
(3) 680 (4) 760 
( )
10. In the figure below, how many right angles are there altogether? 
(1) 4 (2) 8 
(3) 10 (4) 12 
1 8 
( ) 
11. Jessie is facing north-west after making a 2250 anti-clockwise turn. 
Where did she face before she made the turn? 
(1) South (2) East 
(3) South-east (4) South-west 
( ) 
12. Square A and Rectangle B have the same area. The sides of Square A are 
8 cm long. The breadth of Rectangle B is 4 cm. What is the perimeter of 
Rectangle B? 
(1) 16 cm (2) 24 cm 
(3) 40 cm (4) 64 cm 
( ) 
13. It takes John 6 seconds to cut a strip of paper into 2 equal pieces as 
shown below. How long would it take for him to cut a similar strip of 
paper into 10 pieces? 
(1) 48 seconds (2) 54 seconds 
(3) 60 seconds (4) 66 seconds 
( )
1 of a book on Saturday and 
1 9 
14. Henry read 
4 
2 of it on Sunday. If he read 
5 
50 pages on Saturday, how many pages had he left? 
(1) 50 (2) 70 
(3) 80 (4) 200 
( ) 
15. At a fun fair, 9 hot dogs were sold for every 7 hamburgers sold. If 72 
hot dogs were sold, how many hamburgers were sold? 
(1) 8 (2) 16 
(3) 56 (4) 63 
( ) 
Questions 16 to 35 carry 2 marks each. Write your answers in the spaces 
provided. For questions which require units, give your answers in the units stated. 
16. 64 700 is 7000 more than _______________. 
Ans: _____________________ 
17. Express 26 eighths as a mixed number. 
Ans: _____________________ 
18. Write down the first two common multiples of 6 and 9. 
Ans: _____________________
3 = _________. 
2 0 
19. 
7 of 84 is _________. 
12 
Ans: _____________________ 
20. 
3 + 
10 
3 + 
10 
3 + 
10 
10 
Express your answer in the simplest form. 
Ans: _____________________ 
21. How many right angles does the minute hand on a clock go through if it 
moves for 3 h 30 min? 
Ans: _____________________ 
22. A number when divided by 6, has a quotient of 57 and a remainder of 4. 
What is the number? 
Ans: _____________________
23. Complete the number pattern below. 
25, 50, 77, __________, 137, 170, 205. 
2 1 
Ans: _____________________ 
24. How many pairs of parallel lines are there in the figure below? 
Ans: _____________________ 
25. Mandy had $3570 in her bank account. She put in another $300. How 
much more money must she put in if she wants to have a sum of $5000? 
Ans: _____________________
26. What is the product of the largest factor of 11 and the largest factor of 
5 of the shapes below are shaded, how many more shapes need to be 
2 2 
2010? 
Ans: _____________________ 
27. If 
9 
shaded? 
Ans: _____________________ 
28. A fruit seller had 50 boxes of apples. There were 36 apples in each box. 
If all the apples were sold at 9 for $2, how much money would make 
from the sale of apples? 
Ans: _____________________
29. A farmer had chickens, ducks and pigs in his farm. 
5 of them were ducks. What fraction of his animals 
2 3 
4 of his animals 
9 
were chickens and 
12 
were pigs? 
Ans: _____________________ 
30. Laura paid $171 for 5 toy cars and 3 dolls. A toy car cost $7 more than a 
doll. Find the cost of a toy car. 
Ans: _____________________ 
31. Every 3 caps cost $33and every 5 T-shirts cost $60. Find the total cost 
of 9 such caps and 10 such T-shirts. 
Ans: _____________________
32. At a fun fair, every 6th customer was given a book and every 10th 
customer was given a T-shirt. What was the position of the first 
customer who received both a book and a T-shirt? 
2 4 
Ans: _____________________ 
33. I am a 2-digit even number. I can be divided by both 3 and 11 without 
leaving a remainder. What is the smallest possible value of me? 
Ans: _____________________ 
34. Study the number pattern carefully. Find the missing number. 
Ans: _____________________ 
? 
158 62 
10 16 4 
2 6 3 2
35. The figure below is made up of 3 different squares. 
4 of the people are adult and the rest are children. If there 
2 5 
AB = 12 cm and CB = DE = 8 cm. 
Find the length of EF. 
Ans: _____________________ 
Questions 36 to 45 carry 4 marks each. Show your working clearly in the space 
below each question and write your answers in the spaces provided. 
36. 
In the zoo, 
9 
are 350 children, how many adults are there in the zoo? 
Ans: _____________________
37. In a game, there were 40 rows of children. In each row, there were 
twice as many girls as boys. If there were 28 girls in each row, how many 
children took part in the game? 
2 6 
Ans: _____________________ 
38. At a fun fair, the Primary Four pupils sold 25 greeting cards each. There 
were 38 pupils in each of the six Primary Four classes. What was the 
total number of cards sold by the pupils? 
Ans: _____________________
39. Jimmy has 5 times as many stickers as Ron. After Jimmy gave 96 
stickers to Ron, both of them have an equal number of stickers. How 
many stickers do they have altogether? 
2 7 
Ans: _____________________ 
40. Vicky has 50 more cards than Stella. Thomas has 180 cards less than the 
sum of Vick’s and Stella’s cards. If Vicky, Stella, and Thomas have 2200 
cards altogether, how many cards does Stella have? 
Ans: _____________________
41. Sam paid $7840 for 5 computers and 5 printers. Each computer cost 
thrice as much as each printer. What was the cost of each computer? 
1 of a day doing her homework. Kelvin took 
2 8 
Ans: _____________________ 
42. In Packet A, there are 56 marbles and 
4 of them are black. 
7 
In Packet B, there are 72 marbles and 
5 of them are black. 
8 
How many more black marbles are there in Packet B than in Packet A? 
Ans: _____________________ 
43. Natalie spent 
4 
2 of the time 
3 
taken by Natalie to do his homework. How much faster is Kelvin 
compared Natalie? (Take 1 day = 24 hours) 
Ans: _____________________
44. James earned a monthly salary of $2700. He saved 
2 9 
2 of his salary each 
5 
month for seven months, from January to July. In August, he spent 
3 of 
8 
his savings on holidays. How much did he spend on his holidays? 
Ans: _____________________ 
45. The figure below is made up of two squares. The area of the smaller 
square is 121 cm2. What is the perimeter of the larger square? 
Ans: _____________________ 
--- End of Paper ---
Semestral Assessment 1 – Mock Paper 3 
Duration: 1 hr 45 min 
Marks 
Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks 
each. For each question, write the number corresponding to the correct option in 
the bracket provided. 
1. What is the value of 5 thousands, 23 hundreds and 15 tens? 
(1) 5380 (2) 7315 
(3) 7450 (4) 52 315 
3 0 
( ) 
2. 20 000 more than 34 860 is __________. 
(1) 54 860 (2) 36 860 
(3) 32 860 (4) 14 860 
( ) 
3. What are the common factors of 24 and 36? 
(1) 1, 3, 4, 6, 8 (2) 1, 2, 3, 4, 6, 12 
(3) 1, 3, 6, 9, 12 (4) 1, 4, 6, 8, 16 
( ) 
4. 
In the figure above, BC is parallel to __________. 
(1) AE (2) AB 
(3) CD (4) DE 
( )
5. The clock shows 4.30 p.m. How many 
3 (2) 
1 (4) 
4 (2) 
4 (4) 1 
3 1 
1 - turns will the minute hand have 
4 
to take to reach 7 p.m.? 
(1) 12 (2) 10 
(3) 6 (4) 4 
( ) 
6. 22 x 5 is the same as __________. 
(1) 20 x 5 (2) 2 x 2 x 5 
(3) 2 x 5 x 11 (4) 20 x 2 x 5 
( ) 
7. What fraction of the figure below is shaded? 
(1) 
8 
3 
5 
(3) 
3 
1 
2 
( ) 
8. What is 
4 + 
9 
4 + 
9 
4 ? 
9 
(1) 3 
9 
12 
27 
(3) 1 
3 
1 
3 
( ) 
9. Lucy has seven $50 notes and three $20 notes. She wants to buy a 
camera that costs $520. How much more money does she need? 
(1) $110 (2) $310 
(3) $450 (4) $590 
( )
3 full of water. When another 135 ml of water is poured in, it 
9 full. What is the capacity of the bottle? 
3 2 
10. Find the product of 1050 and 45. 
(1) 9450 (2) 45 050 
(3) 47 250 (4) 56 700 
( ) 
11. Mr. Tan is 41 years old now. Next year, his son will be 
2 of his age. How 
7 
old is Mr. Tan’s son now? 
(1) 10 years old (2) 11 years old 
(3) 12 years old (4) 13 years old 
( ) 
12. A bottle is 
5 
becomes 
10 
(1) 45 ml (2) 150 ml 
(3) 225 ml (4) 450 ml 
( ) 
13. Jessica had 544 oranges. She packed them into boxes of 8 oranges each. 
How many boxes did she need to hold all the oranges? 
(1) 60 (2) 67 
(3) 68 (4) 70 
( ) 
14. Find the perimeter of the figure below. 
(1) 55 cm (2) 63 cm 
(3) 66 cm (4) 76 cm 
( )
15. Jackie and Kathy had the same amount of money. After Jackie had spent 
$80, Kathy’s money was 5 times that of Jackie’s. How much money did 
they have altogether at first? 
(1) $100 (2) $112 
(3) $120 (4) $200 
3 3 
( ) 
Questions 16 to 35 carry 2 marks each. Write your answers in the spaces 
provided. For questions which require units, give your answers in the units stated. 
16. Find the sum of 14 thousands, 27 hundreds, 34 tens and 48 ones. 
17. Estimate 4213 ÷ 7 rounded off to the nearest hundred. 
18. 1000 ÷ 25 = x 10. 
What is the missing number in the box? 
Ans: _____________________
19. What is the perimeter of the figure below? 
3 4 
Ans: _____________________ 
20. What is the largest possible 5-digit odd number that can be formed 
using the digits 2, 4, 5, 8, and 9? 
Ans: _____________________ 
21. The sum of all the factors of 32 is __________.
3 of them are apples and the rest are 
3 5 
22. Arrange 
1 , 
6 
4 
3 , 
2 
1 , 
3 
2 in descending order. 
23. How many angles in the figure below are greater than 900? 
Ans: _____________________ 
24. Complete the following pattern: 6, 11, 21, A, 56, 81, B. 
Ans: _____________________ 
25. There are 96 fruits in a basket. 
8 
oranges. How many oranges are there in the basket? 
Ans: _____________________
26. The figure below is not drawn to scale. Find ‹x. 
3 6 
Ans: _____________________ 
27. Mandy bought 28 packets of candies. Each packet contains 16 candies. 
She gave each of her 8 friends an equal number of candies. How many 
candies did each of her friends get? 
Ans: _____________________ 
28. Express 50 cm as a fraction of 3 m. 
Ans: _____________________
29. Ryan bought 4 similar jackets. Caroline bought 6 similar dresses and paid 
$42 more. If each dress cost $32, how much did each jacket cost? 
3 of her paper clips and had 40 paper clips left. How many 
3 7 
Ans: _____________________ 
30. Liz gave away 
8 
paper clips did she give away? 
Ans: _____________________ 
31. A is a square and B is a rectangle. They have the same area. What is the 
perimeter of rectangle B? 
Ans: _____________________
32. A leaking tap fills a tank at a rate of 350 ml every 15 minutes. How many 
litres of water will there be in the tank after 3 hours? 
3 8 
Ans: _____________________ 
33. Tim is as twice as old as Ken. Next year Ken will be twice as old as Nancy. 
If Nancy is 12 years old now, how old is Tim? 
Ans: _____________________ 
34. The figure below is made up of 6 identical squares. The perimeter of the 
figure is 126 cm. What is the length of each side of the square? 
Ans: _____________________
3 of them and packed the rest into sets 
1 its length. The perimeter of the 
3 9 
35. Alan had 240 cookies. He sold 
5 
of 8. How many sets did he pack? 
Ans: _____________________ 
Questions 36 to 45 carry 4 marks each. Show your working clearly in the space 
below each question and write your answers in the spaces provided. 
36. 
The breadth of a rectangle is 
3 
rectangle is 72 cm. Find its area. 
Ans: _____________________
37. Mr. Tan had some money. He kept $500 for himself, gave $1700 to his 
wife and divided the rest equally among his three children. If each of his 
children received $175, how much did Mr. Tan have at first? 
4 0 
Ans: _____________________ 
38. Cathy has some balloons. She gave Peter 
1 of them, and gave Paul 
4 
1 
12 
more than what she gave Peter. If Cathy had given away 42 balloons in 
total, how many balloons has she left? 
Ans: _____________________
39. Tim money was 3 times that of Jane. After Tim spent $500, Jane ‘s 
money was double Tim’s. How much money did they have at first? 
1 kg, what is the mass of the basket? 
4 1 
Ans: _____________________ 
40. A basket when fill with 15 papayas weighs 4 
1 kg. If each papaya weighs 
3 
4 
Ans: _____________________
41. Michael, Tom and Joy collected 1360 stamps altogether. Michael 
collected 180 stamps more than Tom and Tom collected 155 stamps more 
than Joy. How many stamps did Michael collect? 
4 2 
Ans: _____________________ 
42. Box A contains 14 fifty-cent coins and Box B contains some twenty-cent 
coins. If 6 coins are taken out of Box A, the value of coins in Box A is 
twice the value of coins in Box B. How many coins are there in Box B? 
Ans: _____________________
43. There were 100 oranges in Basket A and B altogether. 20 oranges were 
transferred from Basket A to Basket B and 35 oranges were 
transferred from Basket B to Basket A. Now Basket A has thrice the 
number of oranges in Basket B. How many oranges were there in each 
basket at first? 
5 of the girls were eliminated. If 15 girls 
4 3 
Ans: _____________________ 
44. An equal number of boys and girls took part in a competition. After the 
first round, 
4 of the boys and 
5 
8 
remained in the competition, how many boys were eliminated? 
Ans: _____________________
45. One movie ticket cost $12. For every 8 tickets bought, 2 tickets were 
given free. Find the total cost of all the movie tickets for a group of 53 
people. 
4 4 
Ans: _____________________ 
--- End of Paper ---
Semestral Assessment 1 – Mock Paper 4 
Duration: 1 hr 45 min 
Marks 
Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks 
each. For each question, write the number corresponding to the correct option in 
the bracket provided. 
1. 3129 less than ____ is 70 000. 
(1) 73 129 (2) 71 329 
(3) 79 123 (4) 92 329 
4 5 
( ) 
2. Round off the product of 728 and 11 to the nearest ten. 
(1) 8 008 (2) 8 110 
(3) 8 010 (4) 6 890 
( ) 
3. 3 ten thousands, 98 tens 70 ones is ____. 
(1) 30 987 (2) 41 050 
(3) 39 870 (4) 31 050 
( ) 
4. What are the common factors of 60 and 120? 
(1) 2, 3, 4, 6, 10, 12,15,20, 30, 60 (2) 1, 2, 3, 4, 5, 6, 10, 12,15,20, 30, 
60 
(3) 2, 3, 4, 5, 10, 12,15,20, 30, 60 (4) 1, 2, 3, 4, 5, 6, 10, 12,15,20, 30 
( ) 
5. What is the difference between the twelfth multiple of 13 and the ninth 
multiple of 9? 
(1) 75 (2) 81 
(3) 45 (4) 4 ( ) 
6. In 72 213, what is the value of the digit 7? 
(1) 7000 ones (2) 7 hundreds 
(3) 70 thousands (4) 700 tens 
( )
7. There were a number of children in the hall. The teacher could divide 
the children equally without any leftovers in groups of either 5 or 9. How 
many children were there? 
(1) 135 (2) 305 
(3) 125 (4) 215 
4 6 
( ) 
8. All factors of a given number are listed below. What are the missing 
factors in the blanks? 
1, ___, 5, 9, 15, ___. 
(1) 3 and 54 (2) 2 and 30 
(3) 3 and 60 (4) 3 and 45 
( ) 
9. A luggage cost four times as much as a haversack. If John spent $2 510 
on 2 such luggage and 2 such haversacks, how much did 1 luggage cost? 
(1) $251 (2) $1 004 
(3) $753 (4) $1 104 
( ) 
10. A machine produced 8 451 toys in 9 days. If it produced the same 
number of toys in a day, how many toys would the machine be able to 
produce in a week? 
(1) 5 573 (2) 7 357 
(3) 6 573 (4) 939 
( ) 
11. ABCD is a rectangle. What is the value of angle BAD? 
(1) 50 o (2) 32o 
(3) 58 o (4) 42 o 
( )
12. The area of a rectangular plot of land is 415 m2. If its breadth is 5 m, 
find its length. 
(1) 81 (2) 83 
(3) 53 (4) 55 ( ) 
13. ABCD is a rectangle with the perimeter of 65 m. Its length is 4 times its 
breadth. What is the area of the rectangle? 
(1) 169 m2 (2) 766 m2 
(3) 676 m2 (4) 876 m2 ( ) 
3 ? 
4 7 
14. How many fifths are there in 6 
15 
(1) 31 (2) 9 
(3) 13 (4) 3 ( ) 
15. A piece of wire 204 cm long is bent into the shape of a cube. What is the 
length of AB? 
(1) 13 cm (2) 11 cm 
(3) 17 cm (4) 15 cm ( ) 
Questions 16 to 35 carry 2 marks each. Write your answers in the spaces 
provided. For questions which require units, give your answers in the units stated. 
16. What is 
3 of 135? 
5 
Ans: _____________________
17. List the first two common multiples of 27 and 126? 
4 8 
Ans: _____________________ 
18. What is the sum of 31 hundreds, 63 tens and 44 thousands? 
Ans: _____________________ 
19. In the 51 853, what is the difference between the values of the digit 5? 
Ans: _____________________ 
20. A box contains 9 muffins and a tin contains 6 pieces of cookies. Mrs. Yeo 
wants to buy an equal number of muffins and cookies. What is the least 
number of boxes of muffins and tins of cookies that Mrs. Yeo must buy? 
_______ box(es) of muffins. 
_______ tin(s) of cookies. 
Ans: _____________________
21. There were 24 girls, 25 boys and 14 teachers in a hall of a school. What 
fraction of the people were students? 
4 9 
Ans: _____________________ 
22. What is the quotient of 3304÷8? 
Ans: _____________________ 
23. ABCD is a rectangle. Find angle a. 
Ans: _____________________ 
24. Jane works 8 hours a day. She earns $15 for every hour she works. How 
much does she earn if she works for 31 days? 
Ans: _____________________ 
25. List all the common factors of 45 and 135. 
Ans: _____________________
26. Round off the product of 45 and 737 to the nearest hundred. 
5 0 
Ans: _____________________ 
27. Study the pattern and fill in the missing number. 
5 5440, ____, 1 320, 264, 66, 22, 11, 11. 
Ans: _____________________ 
28. Number A is 3500 when rounded off to the nearest hundred and number 
B is 8310 when rounded off to the nearest ten. 
a. What is the greatest possible value of number A? 
b. What is the greatest possible sum of the two numbers? 
Ans: _____________________ 
29. Toni had a collection of stamps. He had fewer than 150. The number of 
stamps he had can be divided into groups of 5 stamps or 9 stamps. What 
was the greatest possible number of stamps he had? 
Ans: _____________________
30. Square A has the area of 144 cm2. What is the perimeter of triangle B? 
6 of a book on Monday and 
5 1 
Ans: _____________________ 
31. 1 
3 + 
5 
2 x351- 
15 
6 =? 
8 
Ans: _____________________ 
32. Nina read 
8 
1 of the book on Sunday. What 
5 
fraction of the book must she read to finish reading the book? 
Ans: _____________________ 
33. 
What fraction of the balls are black? 
Ans: _____________________
34. Find the perimeter of the figure below. (two rectangles are congruent) 
5 2 
Ans: _____________________ 
35. Name A B C D E 
Hours of 
working 
8 5 9 12 7 
$ / hour 56 30 5 16 18 
The table above shows the number of working hours and remuneration 
per hour of working of 5 different people. Suppose you are their boss. 
What is the total money do you have to pay them? 
Ans: _____________________
Questions 36 to 45 carry 4 marks each. Show your working clearly in the space 
below each question and write your answers in the spaces provided. 
36. 
Ms. White had $284 more than Yani. She gave $589 to Yani. If they had 
a total of $8428, how much did Ms. White have finally? 
5 3 
Ans: _____________________ 
37. A can of coke cost $0.85 less than a bottle of coke. If 9 cans of coke 
and 3 bottles of coke cost $16.95, what is the cost of 11 such cans of 
coke? 
Ans: _____________________ 
38. Darryl is attending a mathematics class in a lecture theatre. He is sitting 
at the fifth row from the stage. There are 5 seats to his left and 9 
seats to his right. If there are 13 rows behind him, how many seats are 
there in the lecture theater? 
Ans: _____________________
6 of his money to buy a new car. He had $356 left. How 
36 liters of milk from cow B and 2 liters of 
12 of what he needed in total, what was 
5 4 
39. John spent 
8 
much money did he have at first? 
Ans: _____________________ 
40. In Uncle Tom’s farm, there were 3 cows: A, B, C. Uncle Tom got 3 
1 
5 
liters of milk from cow A, 
8 
milk from cow C in order to make cheese for sale at a carnival. If the 
amount of milk he had was just 
15 
the total amount of milk needed? 
Ans: _____________________ 
41. 
Find the area of the shaded region in the figure? 
Ans: _____________________
42. 13 watermelons cost as much as 104 apples. Mrs. Young bought 3 
watermelons and 13 apples for $14.80. How much did an apple cost? 
1 the amount of money Mary had. 
5 5 
Ans: _____________________ 
43. The amount of money Tom had was 
5 
They had $5562 altogether. How much money did Mary have? 
Ans: _____________________
44. Mr. George raises pigs and chickens on his own farm. The total number of 
legs of pigs and chickens is 1126. The number of pigs is 488 less than the 
number of chickens. How many chickens are there on the farm? 
3 that of AB. If the perimeter of the rectangle is 
5 6 
Ans: _____________________ 
45. The length of AD is 
7 
1380 cm, find the area of the rectangle. 
Ans: _____________________
Semestral Assessment 1 – Mock Paper 5 
Duration: 1 hr 45 min 
Marks 
Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks 
each. For each question, write the number corresponding to the correct option in 
the bracket provided. 
1. In the 82 352, the value of the digit 3 is ___. 
(1) 3 (2) 30 ones 
(3) 30 (4) 30 tens 
2 (2) 1- 
10 (4) 
7 (2) 24 
103 (4) 3 
5 7 
( ) 
2. Which is the following is an equivalent fraction of 
5 ? 
8 
(1) 
3 
1 
4 
(3) 
16 
10 
12 
( ) 
3. The sum of 3 
2 and 
3 
10 is ___. 
16 
(1) 4 
24 
13 
(3) 
12 
7 
24 
( ) 
4. 89 184 – 15 159 = ____. 
(1) 84 145 (2) 74 025 
(3) 84 035 (4) 74 052 
( ) 
5. Which of the following has the same value as 259×75? 
(1) 17 325 (2) 9 452 
(3) 19 525 (4) 19 425 
( )
6. 34 148 when rounded off to the nearest hundred is ____. 
(1) 34 150 (2) 34 100 
(3) 34140 (4) 34 200 
5 8 
( ) 
7. Which of the following angles is less than 90o? 
(1) A (2) C 
(3) B (4) D 
( ) 
8. 
x x 
+ 
(1) 46 (2) 27 
(3) 55 (4) 9 
( ) 
9. What is the sum of 29 482 and 54 189? 
(1) 83 671 (2) 83 417 
(3) 83561 (4) 82 617 
( ) 
= 729 
= 55 
= ?
10. The figure is made up of three squares. The perimeter of the figure is 
2 (2) 
3 (4) 
5 9 
___ cm. 
(1) 711 (2) 385 
(3) 474 (4) 632 
( ) 
11. John had a bottle of milk. He drank 
2 in the morning and drank 
8 
3 of the 
5 
remainder in the evening. What fraction of the original amount of milk 
did he have left? 
(1) 
5 
3 
10 
(3) 20 
3 
5 
( ) 
12. There are 345 red balloons and 335 yellow balloons. Toni mixes them 
together and divides them into groups of 8. How many groups of balloons 
are there? 
(1) 55 (2) 77 
(3) 85 (4) 75 
( ) 
13. How many right angles are there in the figure? 
(1) 2 (2) 4 
(3) 1 (4) 5 
( )
6 0 
14. ABCD is a square. 
Which of the following is the right angle? 
(1) HAE (2) GAD 
(3) HEF (4) GEF 
( ) 
15. 515 × 47 - 359 = ___. 
(1) 24 205 (2) 23 175 
(3) 23 846 (4) 23 126 
( ) 
Questions 16 to 35 carry 2 marks each. Write your answers in the spaces 
provided. For questions which require units, give your answers in the units stated. 
16. Each letter represents a different digit. The same letter represents the 
same digit. 
The digit A= ___ and the digit B=___. 
Ans: _____________________
6 1 
17. 
What is the area of the uncoloured section of the figure? 
Ans: _____________________ 
18. The product of 259 and 93 is ___. 
Ans: _____________________ 
19. The quotient of 5922 divided by 7 is ___. 
Ans: _____________________ 
20. Which line is parallel to line AB? 
Ans: _____________________
7 of 356 in mixed number? 
6 2 
21. What is the value of 
24 
Ans: _____________________ 
22. This figure is drawn to scale. What is the value of angle a? 
Ans: _____________________ 
23. The figure is made up of identical triangles. What fraction of the figure 
is unshaded? 
Ans: _____________________
6 3 
24. List all the factors of 126. 
Ans: _____________________ 
1 3 + × − = 
13 2 
3 7 
25. ? 
10 
5 
20 
Give your answer in mixed number. 
Ans: _____________________ 
26. Which of the following number has more factors: 23, 7, 9, or 36? 
Ans: _____________________ 
27. 19020 ÷ 30 = ___ × 2 
Ans: _____________________ 
28. The product of the 4th and 8th multiples of 4 is ___. 
Ans: _____________________
29. Draw the line CB perpendicular to the line AB. 
3 3 and 
6 4 
Ans: _____________________ 
30. Study the pattern below. What is the missing number? 
35 640, ___, 270, 27, 3 
Ans: _____________________ 
31. Find the difference between 
35 
12 . Give the answer in an 
10 
improper fraction. 
Ans: _____________________ 
32. I am a 2-digit number. I am between 59 and 99. I am divisible by both 4 
and 7. What number am I? 
Ans: _____________________ 
33. The smallest 5-digit even number that can be formed with the digits: 
3, 0, 7, 5, and 4 is____. 
Ans: _____________________
2 15 ? 
1 of the remaining ribbon to Jane. He had 36 cm of ribbon 
6 5 
34. How many eighths are there in 
10 
Ans: _____________________ 
35. The total number of legs of pigs and chickens on a farm is 170. There are 
59 chickens on that farm. How many pigs are there on the farm? 
Ans: _____________________ 
Questions 36 to 45 carry 4 marks each. Show your working clearly in the space 
below each question and write your answers in the spaces provided. 
36. 
Rudy bought some ribbon. He used 105 cm of it to wrap a present. He 
then gave 
3 
left. How much ribbon did he have at first? 
Ans: _____________________
37. Xiao Yun bought 13 boxes of pens. There were 135 pens in each box. She 
sold 1005 pens. How many pens were left? 
6 6 
Ans: _____________________ 
38. Mr. George bought 7 boxes of muffins at $15 each and 8 tins of cookies 
at $23 each. How much did he have to pay in all? 
Ans: _____________________ 
39. Jacky drinks 22.5 litres of milk in 9 days. How many liters of milk does 
he drink in a week? 
Ans: _____________________
40. Sam has $140. He wants to buy a Playstation which cost $550. If he 
saves $82 a month, how many months does he need to save enough money 
to buy the Playstation? 
1 of it to Dannie and another 
6 7 
Ans: _____________________ 
41. Jane baked a pizza. She gave 
3 
1 of the 
8 
remainder to Timmy. She kept the rest for herself. 
a. How much more of the pizza did Dannie get than Timmy? 
b. What fraction of the pizza did Jane keep for herself? 
Ans: _____________________
1 that of AB. The perimeter of the rectangle is 
8 of what Toni has. 
6 8 
42. The length of AD is 
7 
944 cm. Find the area of the rectangle. 
Ans: _____________________ 
43. I have $1280. This is 
5 
How much money does Toni have? 
Ans: _____________________
44. Toy A costs $13 less than toy B. Henry bought 3 toys B and 5 toys A, the 
total cost was $239. How much does one toy A cost? 
6 9 
Ans: _____________________ 
45. Farmer Lin rears a total of 90 ducks and cows on his farm. The total 
number of legs is 280. How many cows are there on his farm? 
Ans: _____________________
Semestral Assessment 2: Mock Paper 1 
Duration: 1 hr 45 min 
Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks 
each. For each question, write the number corresponding to the correct option in 
the bracket provided. 
1. 57 thousands and 19 tens is the same as __________ . 
(1) 5719 (2) 57190 
(3) 57019 (4) 58900 
2 (2) 10 
21 (4) 
7 0 
( ) 
2. How many eighths are there in 4 wholes? 
(1) 32 (2) 16 
(3) 8 (4) 4 
( ) 
3. 5 tens + 7 thousandths = _________ . 
(1) 0.57 (2) 5.7 
(3) 5.007 (4) 50.007 
( ) 
4. How many tenths are there in 60.6? 
(1) 6 (2) 60 
(3) 606 (4) 6060 
( ) 
5. Which of the following is a multiple of both 8 and 14? 
(1) 22 (2) 28 
(3) 32 (4) 56 
( ) 
6. What is the missing fraction? 
85.48 = 80 + 5 + 
2 + 
5 
(1) 25 
4 
(3) 50 
3 ( ) 
5
7 (2) 20 
1 (4) 
7 1 
7. 30 x 6 x 20 = ___________. 
(1) 150 (2) 200 
(3) 3600 (4) 30620 
( ) 
8. 4 kg 56 g of rice is packed into 6 packets. What is the mass of each 
packet in grams? 
(1) 76 g (2) 676 g 
(3) 751 g (4) 760 g 
( ) 
9. Find the value of 
1 
5 
8 − 
15 
(1) 10 
9 
(3) 
5 
1 
3 
( ) 
10. Write 4 
7 as a decimal. 
40 
(1) 4.175 (2) 4.130 
(3) 4.012 (4) 4.740 
( ) 
11. The perimeter of the rectangle below is 48 cm. If its length is twice its 
breadth, find the area of the shaded part. 
(1) 24 cm2 (2) 48 cm2 
(3) 64 cm2 (4) 128 cm2 
( ) 
12. The minute hand of a clock moved from 8:15 a.m. to 9.00 a.m. How many 
degrees did the minute hand move through? 
(1) 45 (2) 90 
(3) 180 (4) 270 
( )
13. Look at the following shapes. How many shapes have both parallel and 
7 2 
perpendicular lines? 
(1) 1 (2) 2 
(3) 3 (4) 4 
( ) 
14. The length of a pole is 160 cm. 8 
5 of it is buried underground. What is 
the length of the pole above ground? 
(1) 20 cm (2) 60 cm 
(3) 80 cm (4) 120 cm 
( ) 
15. Ryan had $18 more than Jane. After their mother gave each of them 
$12, they had $90 altogether. How much did Ryan have at first? 
(1) $24 (2) $36 
(3) $42 (4) $48 
( ) 
Questions 16 to 35 carry 2 marks each. Write your answers in the spaces 
provided. For questions which require units, give your answers in the units stated. 
16. 40 585 = 40 000 + __________ + 80 + 5. 
Ans: _____________________
17. Round 85844 off to the nearest hundreds. 
7 3 
Ans: _____________________ 
18. Use the digits 4, 7, 9, 3, and 6 to form the smallest 5-digit even number. 
Ans: _____________________ 
19. 9.78 + 2.83 = __________ . 
Ans: _____________________ 
20. Find the value of 5097 x 8. 
Ans: _____________________
21. 400 children took part in an international competition. There was an 
1 of the girls have black hair. How many 
20 as a mixed number in the simplest form. 
7 4 
equal number of girls and boys. 
4 
girls do not have black hair? 
Ans: _____________________ 
22. Write 
9 
Ans: _____________________ 
23. Name the pair of parallel lines in the figure below. 
A B 
D 
Ans: _____________________ 
E C
24. What is the value of A in decimal? 
7 5 
Ans: _____________________ 
25. Brad is 1.75 m tall. He is 16 cm taller than Katie. What is Katie’s height in 
metres? 
Ans: _____________________ 
26. A square has an area of 64 m2. The perimeter of a rectangle is twice the 
perimeter of the square. What is the perimeter of the rectangle? 
Ans: _____________________ 
27. Write 9 hundredths as a decimal. 
Ans: _____________________ 
0.6 A 0.8
28. Trees were planted along Handy Road. The first tree was planted at one 
end of the road. The distance between any two trees was 9 m. The 
length of the road was 531 m. How many trees were planted? 
7 6 
Ans: _____________________ 
29. Arrange the following decimals in descending order. 
0.235, 2.032, 0.245, 0.198, 2.35 
30. What fraction of figure below is shaded? 
Ans: _____________________ 
31. Harry went from Singapore to Kuala Lumpur by bus. He arrived at Kuala 
Lumpur at 2.15 a.m. and the trip was 5 
1 hours long. At what time did he 
3 
start the trip? 
Ans: _____________________
32. I am an odd number. I am greater than 60 and smaller than 70. One of 
my factors is 7. What number am I? 
7 7 
Ans: _____________________ 
33. Jessica spent $122.25 on 5 skirts. How much did each skirt cost? 
Ans: _____________________ 
34. Find the area of the figure below. 
Ans: _____________________ 
2 cm 
4 cm 
4 cm 
6 cm 6 cm 
1 cm
35. Angela packed 648 cookies into 9 boxes. She then shared two boxes of 
cookies equally with her mother, father and sister. How many cookies did 
each of them get from Angela? 
7 8 
Ans: _____________________ 
Questions 36 to 45 carry 4 marks each. Show your working clearly in the space 
below each question and write your answers in the spaces provided. 
36. 
Mrs. Lee sold 236 oranges on Saturday. This was 88 fewer than the 
apples sold on the same day. On Sunday, she sold half of all the fruits 
sold on Saturday. How many fruits did she sell in the two days? 
Ans: _____________________ 
37. Jack is 9 years old. His mother is 30 years older than him. In how many 
years’ time will his mother’s age be thrice his age? 
Ans: _____________________
38. Mary has 780 stickers. John has twice as many stickers as Mary. How 
many stickers must John give Mary so that they will have the same 
number of stickers? 
1 full of water. After 40 litres of water were added to the 
3 full. How much water is needed to fill up the whole 
7 9 
Ans: _____________________ 
39. Lana bought 6 kg of sugar. She had 2.24 kg left after using the sugar 
for baking 8 cakes. How much sugar did she use for each cake? (Give the 
answer in kg.) 
Ans: _____________________ 
40. A pail was 
8 
pail, it became 
4 
pail? 
Ans: _____________________
1 of a book on Monday and 
8 0 
41. Kate read 
5 
7 of the book on Tuesday. After 
15 
that, 40 pages were unread. How many pages were there in the book? 
Ans: _____________________ 
42. There 30 chickens and pigs in a farm. There are 84 legs altogether. How 
many chickens are there in the farm? 
Ans: _____________________ 
43. The figure below is not drawn to scale. Find the value of angle X. 
Ans: _____________________ 
70 
X X
44. The total cost of 3 skirts and 5 dresses is $160. 
The total cost of 9 skirts and 13 dresses is $434. 
What is the cost of a dress? 
8 1 
Ans: _____________________ 
45. The rectangle is made up of 3 identical rectangles. The perimeter of the 
large rectangle is 90 cm. Find the area of each small rectangle. 
Ans: _____________________ 
--- End of Paper ---
Semestral Assessment 2: Mock Paper 2 
Duration: 1 hr 45 min 
Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks 
each. For each question, write the number corresponding to the correct option in 
the bracket provided. 
1. In which of the following numbers does the digit 5 stand for 5000? 
(1) 35 470 (2) 92 548 
(3) 62 050 (4) 40 005 
1 (2) 
3 (4) 
8 2 
( ) 
2. 20 thousands, 35 hundreds, and eight is the same as __________ . 
(1) 20358 (2) 20430 
(3) 23508 (4) 23580 
( ) 
3. 1.55 x 6 = __________ . 
(1) 6.55 (2) 7.55 
(3) 9.3 (4) 10.3 
( ) 
4. Which of the following numbers is the factor of both 40 and 60? 
(1) 20 (2) 30 
(3) 40 (4) 60 
( ) 
5. What fraction of the shapes below are ? 
(1) 
5 
2 
5 
(3) 
10 
1 
10 
( )
6. In which of the following sets are the numbers arranged from the 
greatest to the smallest? 
(1) 2045, 2405, 2504, 2540 (2) 2450, 2405, 2504, 2054 
(3) 2504, 2450, 2504, 2540 (4) 2540, 2504, 2405, 2045 
9 . What is the number in “?” ? 
8 3 
( ) 
7. 7.009 = 7 + 
? 
(1) 1 (2) 10 
(3) 100 (4) 1000 
( ) 
8. How many right angles has the minute hand through if it moved from 
4.30 p.m. to 6.15 p.m.? 
(1) 5 (2) 7 
(3) 8 (4) 9 
( ) 
9. When rounded off the nearest $1000, Mr. Tan has $50 000. How much 
money does Mr. Tan have? 
(1) 49 000 (2) 49 499 
(3) 49 500 (4) 50 500 
( ) 
10. The perimeter of a rectangle is 128 cm. Its length is thrice its breadth. 
What is the length of the rectangle? 
(1) 16 cm (2) 48 cm 
(3) 64 cm (4) 96 cm 
( ) 
11. What is the product of the 2 largest factors of 32? 
(1) 32 (2) 64 
(3) 128 (4) 512 
( ) 
12. A theatre has 420 seats. 4 out of every 7 seats are occupied. How many 
seats are unoccupied? 
(1) 60 (2) 105 
(3) 180 (4) 240 
( )
13. Mrs. Tan sold some bags of fruits. There were 8 apples and 5 oranges in 
each bag. How many oranges did he sell if he sold a total of 195 fruits? 
(1) 39 (2) 75 
(3) 120 (4) 975 
3 of them were children. 
8 4 
( ) 
14. Which is the best estimate for the product 67 x 552? 
(1) 60 x 550 (2) 60 x 560 
(3) 70 x 550 (4) 70 x 560 
( ) 
15. There were 900 people at the zoo. 
5 
1 of the 
3 
children were primary pupils. How many primary pupils were there at the 
zoo? 
(1) 180 (2) 300 
(3) 540 (4) 720 
( ) 
Questions 16 to 35 carry 2 marks each. Write your answers in the spaces 
provided. For questions which require units, give your answers in the units stated. 
16. Subtract 8649 from 15729. 
Ans: _____________________ 
17. There is a row of pupils. Mandy stands in the middle of the row. There 
are 12 girls on her left and 15 boys on her right. How many pupils are 
there in the row? 
Ans: _____________________
18. What is the lowest common multiple of 5 and 9? 
8 5 
Ans: _____________________ 
19. Divide 353 by 8. Round off the decimal answer to 2 decimal places. 
Ans: _____________________ 
20. Find the value of 
3 + 1 
. 
4 
16 
Ans: _____________________ 
21. Arrange the following fractions from the smallest to the greatest. 
,15 
18 
18 
7 
, 7 
9 
Ans: _____________________ 
22. Ben bought some paper clippers. He gave 
3 of them to Dennis. If Ben 
8 
gave Dennis 105 paper clips, and kept the rest for himself, how many 
paper clippers did Ben have at first? 
Ans: _____________________
2 and 0.8? 
2 kg lighter than the watermelon. What is the 
8 6 
23. What is the difference between 1 
3 
Ans: _____________________ 
24. 
+ = 76 
– = 28 
What is the value of ? 
Ans: _____________________ 
25. The rectangle below is not drawn to scale. Find x. 
x 290 
Ans: _____________________ 
26. Annie bought a watermelon and a papaya. The mass of the watermelon is 
1 kg. The papaya is 1 
3 
3 
3 
total mass of the two fruits? 
Ans: _____________________
27. Write 1.45 as a fraction in its simplest form. 
8 7 
A 
B C 
D 
E 
Ans: _____________________ 
28. How many times does the digit “8” appear from 70 to 90? 
Ans: _____________________ 
29. Roshan’s age this year is greater than 30 and smaller than 50. His age is 
a multiple of 8 now. Two years later, his age will be a multiple of 7. How 
old is he now? 
Ans: _____________________ 
30. It takes James 1 hour 15 minutes to travel from home to school. He 
reached school at 12.10 p.m. What time did he leave home? 
Ans: _____________________ 
31. The figure below is not drawn to scale. All lines are straight. Name one 
pair of parallel lines from the figure. 
Ans: _____________________
32. John and Kathy had the same amount of money. After John spent $40 
and Kathy spent $14, the amount of money Kathy had left was twice the 
amount of John had left. How much did each of them have at first? 
8 8 
Ans: _____________________ 
33. A square piece of paper has a perimeter of 52 cm. Jenny want to cut out 
rectangles from it. Each rectangle has a breadth of 3 cm and a length 
that is twice its breadth. What is the maximum number of rectangles 
that can be cut out from it? 
Ans: _____________________ 
34. Mary cut a string into two pieces. She bent them to the rectangle and 
the square below. The area of the square is equal to the area of the 
rectangle. Find the perimeter of the rectangle. 
24 cm 36 cm 
Ans: _____________________
35. Kim bought a pair of shoes for $32 and had 
3 of the beads in the box are blue. 0.5 of them are green. The rest are 
red ones. If there are 40 fewer red beads than blue ones, how many 
beads are there in the box? 
8 9 
5 of her money left. How 
13 
much money did she have at first? 
Ans: _____________________ 
Questions 36 to 45 carry 4 marks each. Show your working clearly in the space 
below each question and write your answers in the spaces provided. 
36. 
Mrs. Ho took 12 pupils to watch a movie. She paid $95 for the movie 
tickets altogether. If the ticket for each pupil costs $7, how much did 
the movie ticket for Mrs. Ho cost? 
Ans: _____________________ 
37. 
8 
Ans: _____________________
38. Luna has 4 times as many stamps as George. George has twice as many 
stamps as Tim. They have 880 stamps altogether. How many stamps does 
Luna have? 
9 0 
Ans: _____________________ 
39. Tim thought of a number. When he divided it by 8 and added 4.65 to the 
quotient, he got 23.65. Find the number. 
Ans: _____________________ 
40. 3 identical car toys and 7 similar dolls cost $544 altogether. If a car toy 
cost thrice as much as a doll, find the total cost of a car toy and a doll. 
Ans: _____________________
41. Jenifer, Liz and Daniel had $635 together. Jenifer spent 
9 1 
1 of her 
4 
money and Liz spent thrice the amount Jenifer spent. Daniel spent $50. 
If they had the same amount of money left, how much did Liz have at 
first? 
Ans: _____________________ 
42. Given that ‹a is twice ‹b. Find ‹a. 
Ans: _____________________ 
720 
b 
a
43. Daisy bought 18 magazines at $12 each and had $15 left. During a fun 
fair, the magazine cost $3 less than the original. How many more 
magazines could Daisy buy with the original amount of money? 
9 2 
Ans: _____________________ 
44. Carol had some stickers to give to her friends. If she gave each friend 7 
stickers, she would have 5 stickers left over. If she gave each friend 9 
stickers, she would need 7 more stickers. How many stickers did Carol 
have? 
Ans: _____________________
45. Jerry spent $14.40 each day from Monday to Wednesday, $25.80 on 
Thursday and $32.60 each day from Friday to Sunday. How much did he 
have at first if he had $50 left? 
9 3 
Ans: _____________________
Semestral Assessment 2: Mock Paper 3 
Duration: 1 hr 45 min 
Marks 
Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks 
each. For each question, write the number corresponding to the correct option in 
the bracket provided. 
1. What is the value of 7 in 70 963? 
(1) 70 000 (2) 7000 
(3) 700 (4) 70 
9 4 
( ) 
2. The digit “3” in 67.038 stands for 3 ____________. 
(1) hundreds (2) tenths 
(3) hundredths (4) thousandths 
( ) 
3. Express 
6 4 as a decimal. 
16 
(1) 6.4 (2) 6.16 
(3) 6.25 (4) 6.025 
( ) 
4. In the figure, which angle is greater than a right angle? 
(1) ‹a (2) ‹b 
(3) ‹c (4) ‹d 
( ) 
5. Which one of the following number is 74 600 when rounded off to the 
nearest ten? 
(1) 74 584 (2) 74 595 
(3) 74 608 (4) 74 692 
( )
6. Find the sum of all the factors of 32 that are multiples of 4. 
(1) 24 (2) 28 
(3) 60 (4) 64 
2 (2) 
4 (4) 
1 (2) 5 
1 (4) 
1 hours to travel from Brian’s house to city town by bus. If he 
1 hours. How much longer does it take by bus 
3 hr (2) 1 
3 hr (4) 3 
9 5 
( ) 
7. Which of the following fractions is in its simplest form? 
(1) 
8 
3 
7 
(3) 
12 
6 
16 
( ) 
8. What is the fraction of the shaded part in the figure below? 
(1) 
3 
2 
(3) 
4 
1 
2 
( ) 
9. Which one of the following figures contains both parallel and 
perpendicular lines? 
(1) 
(2) 
(3) (4) ( ) 
10. Katie wants to buy a dress that costs $29.55 but she only has $17.90. 
How much more money does she need? 
(1) $2.70 (2) $11.65 
(3) $12.55 (4) $12.65 
( ) 
11. It takes 2 
4 
goes by car, it takes 1 
2 
than by car? 
(1) 
4 
1 hr 
4 
(3) 1 
4 
3 hr ( ) 
4
12. Which line is the line of symmetry of the figure? 
(1) AB (2) CD 
(3) EF (4) GH 
9 6 
( ) 
13. Lim has $142. If he gives $ 34 to his brother, they will have the same 
amount of money. How much does Lim’s brother have at first? 
(1) $176 (2) $125 
(3) $108 (4) $74 
( ) 
14. ABCD is square. Given ECB = 180. Find ACE. 
A E B 
C D 
(1) 22.50 (2) 270 
(3) 450 (4) 90 
( ) 
15. Cheryl cut a cake to 16 slides. She ate 4 slides and her sister ate 
1 of 
4 
the remaining cake. How many slides did her sister eat? 
(1) 3 (2) 4 
(3) 9 (4) 12 
( )
Questions 16 to 35 carry 2 marks each. Write your answers in the spaces 
provided. For questions which require units, give your answers in the units stated. 
16. What is the missing number in the blank? 
48 059 = 40 000 + __________ + 50 + 7. 
17. Fill in the blanks with the correct number in the number pattern below. 
1225, 1190, 1155, __________, 1085. 
18. Arrange the following in descending order. 
9 7 
2 
3 
1 0.532 0.452 
2 
Ans: _____________________ 
19. Write 
5 5 as a fraction. 
12 
Ans: _____________________
20. The figure below is drawn to scale. What is the value of x? 
9 8 
Ans: _____________________ 
21. Round 33 985 off to the nearest hundred. 
Ans: _____________________ 
22. A stack of 10 one-dollar coins has a height of 3.4 cm. what’s the height 
of a stack of 4 one-dollar coins? Round off your answer to 1 decimal 
place. 
Ans: _____________________ 
23. 
11 - 
12 
3 = _________. 
8 
Ans: _____________________ 
24. What is the highest common factor of 16 and 24? 
Ans: _____________________
25. Amanda bought 3 pencils and 1 pen for $11.5. The pen cost $1.5 more 
than the pencil. How much did the pen cost? 
9 9 
Ans: _____________________ 
26. Frank’s salary was $3300. He spent 
5 of his money and gave his wife 
12 
$1500. How much had he left? 
Ans: _____________________ 
27. In the figure below, AD is parallel to (a) __________ and perpendicular 
to (b) __________. 
Ans: _____________________
28. There are 11 quarters and 14 eighths in a fraction. How many halves are 
10 0 
there in the fraction? 
Ans: _____________________ 
29. 2 bags of mangos and 5 bags of oranges cost $29. If each bag of 
oranges cost $4 less than each bag of mangos, find the cost of a bag of 
mango. 
Ans: _____________________ 
30. A rectangular piece of paper is folded as shown below. Find the area of 
the original piece of paper. 
Ans: _____________________
1 of her cookies in the morning and 
10 1 
31. Mrs. Lee sold 
3 
1 of them in the 
4 
afternoon. She sold 140 cookies. How many cookies had she left? 
Ans: _____________________ 
32. Fancy cut a wire into two pieces. She bent them to form a rectangle and 
a square. The length of the square is 8 cm and it is twice the breadth of 
the rectangle. The area of the square is the same as the area of the 
rectangle. Find the perimeter of the rectangle. 
Ans: _____________________ 
33. Mary is facing the book store. She turns 2250 anti-clockwise. What is 
she facing? 
Ans: _____________________
34. The figure below is not drawn to scale. ABCD is a rectangle. Find ‹CDE 
10 2 
and ‹ABG 
Ans: _____________________ 
35. Ross saved $50 in the first month, $100 in the second month, $150 in 
the third month and so forth. Following this pattern, the amount of 
money he saved in the last month will be $300. How much money did he 
save in all? 
Ans: _____________________
Questions 36 to 45 carry 4 marks each. Show your working clearly in the space 
below each question and write your answers in the spaces provided. 
36. 
Tim bought a shirt, a belt and a pair of socks from a store. The shirt 
cost 6 times as much as the socks. The belt cost $7.55 more than the 
socks. If the socks cost $3.75, how much did Tim pay altogether? 
10 3 
Ans: _____________________ 
37. Andy bought an equal number of bowls and spoons with $320. Each bowl 
cost $2 more than a spoon and a spoon cost $4. How many more did he 
spend on the bowls than on the spoons? 
Ans: _____________________
38. Leona had some cards. After giving 86 cards to Jimmy, they had the 
same number of cards. If Jimmy had 49 cards at first, how many cards 
did Leona have at first? 
4 of her money at the shopping 
1 of it at the spa. How much money did she have left? 
10 4 
Ans: _____________________ 
39. Sam had $450 at first. She spent 
9 
center and 
3 
Ans: _____________________
40. There are 350 marbles in the box. 
2 of the marbles are blue, and 
5 
1 of the red marbles are removed, how many beads will be left in 
10 5 
2 of 
7 
the marbles are red. The rest are green ones. If 
3 of the blue marbles 
7 
and 
4 
the box? 
Ans: _____________________ 
41. The figure below is made up of 2 squares. The length of the bigger 
square is thrice the length of the smaller square. Find the area of the 
figure. 
Ans: _____________________
42. Ribbon A is 15 cm shorter than ribbon B. 
10 6 
3 of ribbon A is equal to 
4 
1 of 
3 
ribbon B. What is the length of ribbon B? 
Ans: _____________________ 
43. Mandy’s money was 5 times Nancy’s at first. After Mandy gave $72 to 
Nancy, Mandy had the same amount of money as Nancy. How much money 
did Mandy have at first? 
Ans: _____________________ 
44. Carla bought a pair of shoes, a dress and a wallet for $210 together. The 
shoes cost $25 more than the dress and the wallet cost $19 less than 
the dress. What was the cost of the wallet? 
Ans: _____________________
45. The figure below is made up of 2 squares and 2 rectangles A and B. Find 
10 7 
the area of the figure. 
Ans: _____________________
Semestral Assessment 2: Mock Paper 4 
Duration: 1 hr 45 min 
Marks 
Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks 
each. For each question, write the number corresponding to the correct option in 
the bracket provided. 
1. 55 thousands and 8 tens are the same as __________. 
(1) 558 (2) 5580 
(3) 55080 (4) 55800 
2 1 x 8 = 
10 8 
( ) 
2. How many lines of symmetry are there in the figure below? 
(1) 1 (2) 3 
(3) 5 (4) 10 
( ) 
3. Fill the missing number in the “?”: 
8 
? . 
2 
(1) 17 (2) 34 
(3) 68 (4) 136 
( ) 
4. What is 134.95 when is rounded off to 1 decimal place? 
(1) 135.0 (2) 135.9 
(3) 134.0 (4) 134.9 
( )
5. How many minutes are there in 6 h 45 min? 
(1) 645 (2) 405 
(3) 360 (4) 285 
3 of 1 minute? Give your answer in seconds. 
10 9 
( ) 
6. Find the difference between 26.96 and 5.88. Round off your answer to 
the nearest tenth. 
(1) 2.08 (2) 20.0 
(3) 21.0 (4) 21.1 
( ) 
7. Which of the lines is parallel to AB? 
A B 
C D 
(1) CD (2) AC 
(3) BC (4) AD 
( ) 
8. What is 
5 
(1) 12 s (2) 36 s 
(3) 60 s (4) 72 s 
( ) 
9. Tom has 2 twenty-cent coins and 5 fifty-cent coins. He put some coins in 
the donation tin. How much money could he have donated? 
(1) $1.60 (2) $2.10 
(3) $2.30 (4) $2.70 
( ) 
10. Lim studied for a test from 21:50 to 1:45 the next day. How long did he 
study? 
(1) 2 h 55 min (2) 3 h 50 min 
(3) 3 h 55 min (4) 4 h 55 min 
( )
11. A number is 600 when rounded off to the nearest hundred. Another 
number is 900 when rounded off to the nearest hundred. What is the 
smallest possible sum of the two numbers? 
(1) 1250 (2) 1400 
(3) 1560 (4) 1620 
5 hr to go to school from home by bus. How many seconds 
11 0 
( ) 
12. Laura took 
12 
did she take? 
(1) 25 s (2) 60 s 
(3) 300 s (4) 1500 s 
( ) 
13. Tom faced northeast after a 2250 clockwise turn. What direction was he 
facing before the turn? 
(1) South (2) West 
(3) Southeast (4) Southwest 
( ) 
14. ABCD is a rectangle and AEF is a right triangle. If BAE = 520, find 
FAC. 
(1) 380 (2) 450 
(3) 520 (4) 1420 
( ) 
A 
C 
B 
F 
E 
D 
F
15. The figure below is not drawn to scale. Find the perimeter of the figure. 
(1) 46 cm (2) 49 cm 
(3) 51 cm (4) 58 cm 
11 1 
( ) 
Questions 16 to 35 carry 2 marks each. Write your answers in the spaces 
provided. For questions which require units, give your answers in the units stated. 
16. Find the value of 1 - 
1 - 
4 
3 . 
8 
Ans: _____________________ 
17. Write 4.45 as a fraction in the simplest form. 
Ans: _____________________ 
18. Write fourteen thousand and seventy-nine in figures. 
Ans: _____________________ 
19. Find the value of 8.46 x 7. 
Ans: _____________________
11 2 
20. Express 
49 as a decimal. 
100 
Ans: _____________________ 
21. 23.4 – 6.79 = _________. 
Ans: _____________________ 
22. Arrange the following numbers in ascending order 
0.507, 0.057, 0.705, 0.075 
Ans: _____________________ 
23. What is the lowest common multiple of 6 and 8? 
Ans: _____________________ 
24. Each of the symbols below represent a different number. 
+ + + = 55 
+ + = 39 
x = 64 
What number does represent? 
Ans: _____________________
25. A piece of cloth is in red and orange. The red part is 0.75 m long and the 
orange part is 0.58 m longer than the red part. Find the length of the 
piece of cloth. 
11 3 
Ans: _____________________ 
26. Anna bought 7 erasers at $2.25 each. She paid the cashier 2 ten-dollar 
notes. How much change did she get? 
Ans: _____________________ 
27. Cheryl, May and Lily spent $1380 altogether. Cheryl spent thrice as 
much as May spent and May spent half of what Lily spent. How much 
money did Cheryl spend? 
Ans: _____________________ 
28. Jenny started doing her part time job at 10:15 and finished at 16:30. 
Her tea break was 45 minutes long. How much time did she spend doing 
her job? 
Ans: _____________________
29. The figure below is made up of 2 rectangles and a square. Find the 
11 4 
perimeter of the figure. 
Ans: _____________________ 
30. The figure below is not drawn to scale. Find ‹x. 
Ans: _____________________ 
31. The minute hand of a clock moved from 4.25 p.m. to 4.40 p.m. What was 
the angle moved by the minute hand? 
Ans: _____________________
32. Liz spent half of her money on clothes and 0.2 of that amount on food. 
Then she spent the rest of her money on 3 books. If each book cost 
$29.90, how much did Liz spend on clothes? 
1 DC, find the perimeter of ABCD. 
11 5 
Ans: _____________________ 
33. The figure below shows the square DFEG and the rectangle ABCD. Given 
that DF = 
2 DA and DG = 
3 
2 
Ans: _____________________ 
34. Jason earns $38.5 a day from his part time job. He spends $29.5 a day 
and saves the rest. If he wishes to buy some CDs that cost $16.5 and a 
watch that costs $49.9, at least how many days does he need to save to 
buy both of them? 
Ans: _____________________
35. Sara’s watch is 45 minutes faster than the actual time. She wants to 
meet her friend at 7 p.m. It takes her 40 minutes to get from her house 
to the meeting place. What time is shown on Sara’s watch when she 
leaves her house? Given that she leaves the house just to arrive the 
punctually to meet her friend. 
4 of what Laura has. If John has $1396, how much does Laura 
11 6 
Ans: _____________________ 
Questions 36 to 45 carry 4 marks each. Show your working clearly in the space 
below each question and write your answers in the spaces provided. 
36. 
John has 
9 
have? 
Ans: _____________________
37. Mary’s money was twice that of Fred’s. After Mary received $12 and 
Fred received $25 from their parents, they had the same amount of 
money. How much money did they have together at first? 
1 as much as a pair of jeans, find out the cost of a pair of 
11 7 
Ans: _____________________ 
38. Jane bought 2 identical pairs of jeans and 5 identical shirts for $216. If 
a shirt cost 
2 
jeans. 
Ans: _____________________ 
39. Rectangle A and square B have the same perimeter. The side of the 
square is 13 cm. The length of the rectangle is 4 cm longer than the side 
of the square. Find the area of the rectangle. 
Ans: _____________________
40. Taylor and Jane had the same number of paper clips. After Taylor gave 
48 paper clips to Jane, Jane had 4 times as many paper clips as Taylor. 
How many paper clips did Taylor have at first? 
11 8 
Ans: _____________________ 
41. In the square below, the area of the shaded region is 33 m2. Find the 
length of the square. 
Ans: _____________________ 
42. The usual price of box of biscuits is $4.25 and a box of oranges cost 
$2.70. Daisy paid a total $23.89 for 5 boxes of biscuits and 3 boxes of 
oranges. How much money did she save? 
Ans: _____________________
43. Jenifer mixed 4 bottles of water with 0.45 litres mango syrup to make 
mango juice. Each bottle contained 900 ml. She then poured equal 
amount of the mixture into 9 identical glasses. How many litres of 
mango juice were there in each glass? 
11 9 
Ans: _____________________ 
44. John bought 2 umbrellas, 8 pens and 4 erasers for $35. The cost of 2 
pens and 1 eraser was $3.80. How much did 1 umbrella cost? 
Ans: _____________________
45. The figure below is not drawn to scale. Jia Lin pasted a rectangle picture 
on a cardboard measuring by 48 cm x 80 cm. He left a 4cm border all 
around the picture. What is the area of the cardboard not covered by 
the picture? 
12 0 
Ans: _____________________
Semestral Assessment 2- Mock Paper 5 
Duration: 1 hr 45 min 
Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks 
each. For each question, write the number corresponding to the correct option in 
the bracket provided. 
1. In which of the following numbers does the digit 7 stand for 70? 
(1) 35 070 (2) 48 703 
(3) 67 094 (4) 70 658 
3 (2) 
3 of 1 kg? Give your answer in grams. 
12 1 
( ) 
2. What is the missing number represented by “?” ? 
50.070 = 50 + 
7 
? 
(1) 1 (2) 10 
(3) 100 (4) 1000 
( ) 
3. How many sevenths are there in 3 wholes? 
(1) 
7 
7 
3 
(3) 7 (4) 21 
( ) 
4. What is 
4 
(1) 750 g (2) 75 g 
(3) 7.5 g (4) 0.75 g 
( ) 
5. Which one of the following is a factor of both 16 and 40? 
(1) 56 (2) 24 
(3) 16 (4) 8 
( )
6. Which line is parallel with CD in the figure below? 
(1) AB (2) BE 
(3) AE (4) BD 
1 (2) 
5 (4) 
1 of the pizza and gave 
1 of the remainder to her friend. 
1 (2) 
3 (4) 
12 2 
( ) 
7. A square has an area of 49 cm2. Find its perimeter. 
(1) 14 cm (2) 21 cm 
(3) 28 cm (4) 49 cm 
( ) 
8. Find the value of 
11 − 1 
. 
6 
18 
(1) 
2 
4 
9 
(3) 
9 
5 
6 
( ) 
9. Mary ate 
4 
3 
What fraction of the pizza was left? 
(1) 
2 
2 
3 
(3) 
4 
5 
12 
( ) 
10. Vanessa went to her school at 8:30 and left at 16:15 on the same day. 
How long was she at school? 
(1) 7 h 15 min (2) 7 h 45 min 
(3) 8 h 15 min (4) 8 h 45 min 
( )
11. Which one of these figures is a symmetric figure ? 
(1) 
(2) 
(3) 
(4) 
12 3 
( ) 
12. Find the sum of all the factors of 32 that are multiples of 4. 
(1) 20 (2) 28 
(3) 60 (4) 64 
( ) 
13. Find the missing number in the box. 
120 x 89 = 125 x 89 + 15 x 89 - x 89 
(1) 260 (2) 20 
(3) 10 (4) 5 
( ) 
14. Cherry has a rectangle cardboard which measures 29 cm by 18 cm. She 
wants to cut out as many small rectangular pieces as she can from it. 
Each small rectangular piece is measured by 6 cm x 4 cm. What is the 
maximum number of small rectangular pieces that she can get? 
(1) 24 (2) 18 
(3) 16 (4) 8 
( ) 
15. Justin has $21 more than Ariel. After their mother gave each of them 
$12, both of them have $83 together. How much money did Justin have 
at first? 
(1) $19 (2) $38 
(3) $40 (4) $52 
( )
Questions 16 to 35 carry 2 marks each. Write your answers in the spaces 
provided. For questions which require units, give your answers in the units stated. 
16. Using the digits 2, 4, 5, 8, 9 to form the greatest 5-digit odd number. 
20 as a mixed number in its simplest form. 
5 and 0.5? 
12 4 
Ans: _____________________ 
17. Round off 25 890 to the nearest hundred. 
Ans: _____________________ 
18. 26.5 – 8.69 = _________. 
Ans: _____________________ 
19. Write 
6 
Ans: _____________________ 
20. Write 9 hundredths as a decimal. 
Ans: _____________________ 
21. What is the difference between 
8 
Ans: _____________________
22. Arrange the following numbers from the smallest to the greatest. 
1 hr to go to school from home. How many seconds did he 
12 5 
0.4068, 0.0468, 0.0648, 0.864 
Ans: _____________________ 
23. Find the value of 1+ 
7 + 
10 
1 . 
2 
Ans: _____________________ 
24. There are 458 people at a concert. There are 80 more women than men. 
How many women are there at the concert? 
Ans: _____________________ 
25. Dennis took 
5 
take? 
Ans: _____________________
26. The figure below is drawn to scale. Measure and write down the size of 
12 6 
‹X. 
Ans: _____________________ 
27. Jessie spent $60 on a watch and had 
4 of money left. How much money 
9 
did she have at first? 
Ans: _____________________ 
28. Elaine bought 6 cakes for $128.34. How much did each cake cost? Round 
off your answer to 1 decimal place. 
Ans: _____________________
29. Find the area of unshaded region in the figure below. 
12 7 
Ans: _____________________ 
30. + = 68 
- = 26 
What is the value of ? 
Ans: _____________________ 
31. A bag of 5 oranges cost $2.70 while an orange cost $0.60. If Darwin 
wants to buy exactly 18 oranges, what is the minimum amount of money 
he has to pay? 
Ans: _____________________
32. Find the number missing in “?” in the figure below. 
1 of the figure below were to be shaded, what fraction of 
12 8 
Ans: _____________________ 
33. If another 
4 
the whole figure would be shaded? Give your answer in its simplest form. 
Ans: _____________________
34. Mr. Tan wants to plant trees of 6 m apart on all sides of his rectangle 
garden. The length of the garden is 60m and the breadth of the garden 
is 30m. How many trees does Mr. Tan need? 
12 9 
Ans: _____________________ 
35. Daniel is standing at point marked X and facing MRT station. What will 
he face if he turns 2700 clockwise? 
Ans: _____________________
Questions 36 to 45 carry 4 marks each. Show your working clearly in the space 
below each question and write your answers in the spaces provided. 
36. 
The area of the square ABCD is 121 cm2 and the area of the shaded 
square is 16 cm2. Given CE = FD, find the length of CE. 
13 0 
Ans: _____________________ 
37. Box A is 5.7 kg heavier than box B. Box B is 3.8 kg heavier than box C. If 
box A is 28 kg, what is the total mass of 3 boxes? 
Ans: _____________________
38. Jason had $840 at first. He spent 
1 of the money at the book store and 
4 
2 of the remainder to his mother. How much money had he left? 
6 of Carol’s savings. Laura saves $60 
13 1 
gave 
3 
Ans: _____________________ 
39. 
3 of Laura’s savings is equal to 
4 
7 
more than Carol. How much do they save together? 
Ans: _____________________
40. The figure below is made up of 3 identical rectangles. The perimeter of 
the figure is 200 cm. Find the area of the figure. 
13 2 
Ans: _____________________ 
41. Andrew and Allan had a total of 89 stickers at first. After Andrew 
bought 35 more stickers and Allan lost 18 stickers, Andrew now have 8 
more stickers than Allan. 
How many stickers did Andrew have at first? 
Ans: _____________________
42. A bike has 2 wheels and a car has 4 wheels. There are 18 bikes and cars 
altogether. There are 52 wheels together. How many bikes are there? 
13 3 
Ans: _____________________ 
43. All the figures below are squares. Study this pattern carefully. 
Figure 1 Figure 2 Figure 3 
Figure 2 are divided into 4 small squares and figure 3 are divided into 16 
small squares. How many small squares are divided in figure 5? 
Ans: _____________________
44. The parking charges at ABC car park is $2.5 for the first hour and 
$0.65 for every subsequent 30 min everyday. Mr. Lee parked his car at 
the car park from 11.30 a.m. to 3pm on Saturday and Sunday. How much 
did he pay together? 
13 4 
Ans: _____________________ 
45. Paul took 3 h 50 min to do his homework. Tom started to do his 
homework at 19:35 and finished at 22:00. Jimmy took 
1 of the total time 
3 
taken by both Paul and Tom to do his homework. How long did Jimmy take 
to complete his homework? 
Ans: _____________________
Answers to Semestral Assessment 1 – Mock Paper 1 
Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 
3 4 3 4 2 3 3 2 4 2 1 4 1 2 3 
16) 14 075 17) 4 18) 1860 19) 3085 20) 
5 , , , 22) 4 23) 2700 24) 
2 28) $725 29) A = 7, B = 5 30) 63 
13 5 
4 1 
4 
3 
1 
4 
21) 12 
9 
2 
5 
213 25) 108 
15 
26) $230 27) 
3 
31) 32/5 km 32) Lab 33) 14 469 34) 242 cm2 35) 28 games 
36) The skirt cost $15 + $17 = $32. 
$15 x 2 = $32, The dress cost $32. 
$15 + $32 + $32 = $77 
Leona spent $77 on the 3 things. 
37) 12 x $32 = $384 
24 x $13 = $312 
$1400 - $384 - $312 = $704 
She had $704 left. 
5 
3 + 1 
= 
38) 8 
4 
8 
1− 5 = 
3 
8 
8 
720 ÷ 3 = 240 
240 x 8 = 1920 
Andy had 1920 stamps at first. 
39) Mr. Lee had 140 x 30 = 4200 cookies. 
4200 ÷ 9 = 466 remainder 6 
$466 x 3 = $1398 
$0.50 x 6 = $3 
$1398 + $3 = $1401 
She collected $1401 from the sale. 
40) 3 - 4 3 
1 l = 2250 ml 
= 2 4 
2250 ÷ 9 = 250 ml 
Each bottle contains 250 ml. 
1− = 
2 + = , 9 
41) 1 
9 9 
5 
3 
4 
9 5 
52 ÷ 4 = 13, 13 x 9 = 117 
Daisy has 117 beads. 
9 
2 x 117 = 26, There are 26 blue beads. 
52 – 26 = 26 
There are 26 more blue beads than yellow 
beads. 
42) 130 – 40 = 90 
1 unit: 90 + 40 + 90 = 220 
3 units: 220 x 3 = 660 
There are 660 magazines altogether. 
43) 90 ÷ 3 = 30, 30 x 7 = 210 
210 – 90 = 120 
Annie saves $120 every month. 
3 years = 36 months 
120 x 36 = 4320. 
She will save $4320 in 3 years. 
44) W: 128 x 2 = 256 
C: 256 x 3 = 768 
Total: 128 + 256 + 768 = 1152 
1152 ÷ 8 = 144 
There are 1152 ÷ 8 = 144 groups. 
45) 90 – 18 – 40 = 32 
∠a = 320 
90 – 22 – 40 = 28, ∠b = 280 
320 + 280 = 600 
The sum of ∠a and ∠b is 600.
Answers to Semestral Assessment 1 – Mock Paper 2 
5 Q1 Q2 6 
Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 
1 4 4 2 3 2 1 1 4 4 1 3 2 2 3 
16) 57 700 17) 3 1 18) 18, 36 19) 49 20) 4 
13 6 
21) 14 right 
angles 
22) 346 23) 106 24) 1 25) $1130 
26) 22 110 27) 5 28) $400 29) 36 
5 30) $24 
31) $219 32) 30th 33) 66 34) 9 794 35) 28 cm 
36) 9 
1− 4 = 
5 
9 
350 ÷ 5 = 70 
70 x 9 = 630 
There are 640 people in the zoo. 
There are 9 
4 x 630 = 280 adult in the zoo. 
37) 28 x 2 = 14 
14 + 28 = 42 
There were 42 children in each row. 
42 x 40 = 1680 
38) 38 x 6 = 228 
228 x 25 = 5700 
The total number of cards sold was 5700. 
39) 96 ÷ 2 = 48 
48 x 5 = 240 
240 + 48 = 288 
They have 288 stickers together. 
40) 2200 – 180 = 2020 
2020 ÷ 2 = 1010 
Thomas has 1010 cards. 
1010 + 180 = 1190 
Vicky and Stella have 1190 cards in total. 
1190 – 50 = 1140 
1140 ÷ 2 = 570 
Vicky has 570 + 50 = 620cards. 
41) 3 x 5 + 5 = 20 
5 computers and 5 printers cost as much as 
20 printers. 
7840 ÷ 20 = 392 
392 x 3 = 1176 
The cost of a computer was $1176. 
4 x 56 = 32 
42) 7 
5 x 72 = 45 
8 
45 – 32 = 13 
There are 13 more black marbles in the in 
packet B than packet A. 
43) 4 
1 x 24 = 6 h 
3 2 x 6 = 4h 
6 – 4 = 2h 
Kelvin took 2h less. 
2 x 2700 = 1080 
He saved $1300 each month. 
1080 x 7 = 7560 
He saved $9100 in 7 months. 
8 
44) 5 
3 x 7560 = 2835 
He spent $2835 for his holidays. 
45) 121 = 11 x 11 
Each side of the smaller square is 11 cm 
11 + 6 = 17 cm 
Each side of the larger square is 17 cm 
17 x 4 = 68 cm 
The perimeter of the larger square is 68 
cm.
Answers to Semestral Assessment 1 – Mock Paper 3 
4 Q1 Q2 3 
Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 
3 1 2 1 2 3 1 4 1 3 2 4 3 3 4 
16) 17 088 17) 600 18) 4 19) 220 cm 20) 98 425 
21) 63 22) 1 23) 3 24) A =36, B = 
13 7 
, 3 2 
, 2 
1 , 6 
111 
25) 60 
26) 2270 27) 56 28) 6 
1 29) $37.5 30) 24 
31) 52 cm 32) 4.2 l 33) 50 years old 34) 9 cm 35) 12 
36) 8 units: 72 cm, 1 unit: 72 ÷ 8 = 9 cm 
The breadth of the rectangle is 8 cm. 
8 x 3 = 24 cm 
The length of the rectangle is 24 cm 
Area of rectangle is 8 x 24 = 192 cm2. 
37) 175 x 3 = 525 
500 + 1700 + 525 = 2725 
Mr. Tan had $2725 at first. 
1 + 12 
38) Cathy gave Paul 4 
1 = 3 
1 of her balloons. 
1 + 3 
Cathy gave away 4 
7 of her 
1 = 12 
balloons. 
42 ÷ 7 = 6, 6 x 12 = 72 
She had 72 balloons at first. 
72 – 42 = 30 
She had 30 balloons left. 
39) 5 units: 500 
1 unit: 500 ÷ 5 = 100 
100 x 8 = 800 
They had $800 at first. 
1 = 4 
40) 15 x 4 
15 kg 
1 kg = 3 
4 3 
13 kg 
13 − 15 
= 7 
kg 
3 
4 
12 
The mass of the basket is 12 
7 kg. 
41) 3 units: 1360 – 180 – 155 – 155 = 870 
1 unit: 870 ÷ 3 = 290 
290 + 155 + 180 = 625 
Michael collected 625 stamps. 
42) 14 - 6 = 8 
8 x 50 = 400 cents 
400 ÷ 2 = 200 cents 
200 ÷ 20 = 10 coins 
There are 10 twenty-cent coins in box B. 
43) 100 ÷ 4 = 25 
25 x 3 = 75 
Now basket A has 75 oranges and basket B 
has 25 oranges. 
75 + 20 – 35 = 60 
Basket A had 60 oranges at first. 
100 – 60 = 40 
Basket B had 40 oranges at first. 
5 = 8 
44) 1 - 8 
3 
15 ÷ 3 = 5 
5 x 8 = 40 
There were 40 girls and 40 boys in the 
competition. 
5 
4 x 40 = 32 
32 boys were eliminated. 
45) 8 x $12 = $96 
8 + 2 = 10 
10 tickets were sold together at $96. 
53 ÷ 10 = 5 remainder 3 
$96 x 5 = $480 
$12 x 3 = $36 
$480 + $36 = $516 
The total cost was $516.
Answers to Semestral Assessment 1 – Mock Paper 4 
Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 
1 3 4 2 1 3 1 4 2 3 2 2 1 1 3 
16) 81 17) 378 18) 47730 19) 49 950 20) 2 boxes, 3 
11 34) 170 cm 35) $961 
4 24) 
13 8 
tins 
21) 7/9 22) 413 23) 34 degrees 24) $3720 25) 1, 3, 5, 9, 15, 
45 
26) 33 200 27) 7 920 28) a. 3549, b.11 
863 
29) 135 30) 36 cm 
13 32) 20 
31) 47 20 
1 33) 36 
36) $3767 37) $13.20 38) 270 39) $1424 40) 8 
97 litres 
41) 5625 cm2 42) $.40 43) $4635 44) 513 45) 99981 cm2 
Answers to Semestral Assessment 1 – Mock Paper 5 
6 Q1 Q2 5 
Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 
4 3 1 2 4 2 3 1 1 4 2 3 2 1 3 
16) A=5, B=8 17) 55 cm2 18) 24 087 19) 846 20) CF 
21) 103 22) 35o 
23) 7 
1,2,3,6,7,9,14,21,42,63,126 
3 
25) 58 20 
26) 36 27) 317 28) 512 29) - 30) 2970 
31) 66 32) 84 33) 30574 34) 28 35) 13 
35 
36) 159 cm 37) 750 38) $289 39) 17.5 litres 40) 5 months 
41)a. 1 , b. 7 42) 24 367 cm2 
43) $800 44) $25 45) 50 cows 
4 
12
Answers to Semestral Assessment 2: Mock Paper 1 
Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 
2 1 4 3 4 1 3 2 4 1 3 4 2 2 3 
16) 500 17) 85 800 18) 34796 19) 12.61 20) 40 776 
21) 150 22) 2 2 23) AE and CD 24) 0.76 25) 1.59 m 
9 
26) 64 m 27) 0.09 28) 60 29) 2.35, 2.032, 
13 9 
0.245, 0.235, 
0.198 
1 
30) 4 
31) 8.55 p.m. 32) 63 33) $24.45 34) 54 cm2 35) 36 
36) 236 + 88 = 324 
She sold 324 apples on Saturday. 
236 + 324 = 560 
The number of fruits sold on Saturday was 
560. 
560 ÷ 2 = 280 
She sold 280 fruits on Sunday. 
560 + 280 = 840 
She sold 840 fruits on the two days. 
37) 
His mother 
Jack 30 years old 
30 ÷ 2 = 15 
Jack will 15 years old when his mother’s age is 
thrice Jack’s age. 
In15 – 9 = 6 years’ time, the age of Jack’s 
mother is thrice his age 
38) 780 x 2 =1560 
John has 1560 stickers. 
780 + 1560 = 2340 
They have 2340 stickers together. 
2340 ÷ 2 = 1170 
Each has 1170 stickers if they share equally. 
1560 – 1170 = 390 
John must give Mary 390 stickers. 
39) 6 – 2.24 = 3.76 
She used 3.76 kg of sugar to bake 8 cakes. 
3.76 ÷ 8 = 0.47 kg 
She used 0.47 kg for each cake. 
40) 4 3 
- 8 1 
5 
= 8 
5 = 8 
1 - 8 
3 
5 of water in the pail is 40 litres, 8 
8 
3 of the pail 
hadn’t been filled up yet. 
5 units: 40 l 
1 unit: 40 l ÷ 5 = 8 l 
3 units: 8 l x 3 = 24 l 
16 l of water was needed to fill up the pail. 
1 + 15 
41) 5 
7 = 3 2 
1 - 3 2 
1 
= 3 
1 of the book is 40 pages. 
3 
40 x 3 = 120 
There were 120 pages in the books. 
42) There are 18 chickens. 43) 1800 – 700 = 1100 
X= 1100 ÷ 2 = 550 
44) $160 x 3 = $480 
The cost of 9 skirts and 15 dresses is $480. 
The cost of 9 skirts and 13 dresses is $457. 
$480 – 434 = $46 
The cost of 2 dresses is $46. 
$46 ÷ 2 = $23 
The cost of a dress is $23. 
45) 90 ÷ 10 = 9 
The breadth of the small rectangular is 9 cm. 
9 x 2 = 18 
The length of the small rectangular is 18 cm. 
9 x 18 = 162 
The area of the small rectangular is 162 cm2.
Answers to Semestral Assessment 2: Mock Paper 2 
Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 
1 3 3 1 2 4 4 2 3 2 4 3 2 3 1 
16) 7080 17) 28 18) 45 19) 44.13 20) 16 
14 0 
7 
7 , 9 
21) 18 
15 22) 280 23) 15 
7 , 18 
13 24) 52 25) 610 
26) 5kg 27) 20 
29 28) 12 times 29) 40 30) 10.55 a.m. 
31) AD and CE 32) $66 33) 8 34) 104 cm 35) $52 
36) 7 x 12 = 84, 95 – 84 =11 
Mrs. Ho’s ticket was $11. 
40) 3 x 3 + 7 = 16 
3 car toys and 7 dolls cost as much as 16 dolls. 
$544 ÷ 16 = $34, A doll cost $34. 
34 x 3 = $102, A toy car cost $102. 
A toy car and a doll cost $34 + $102 = $136. 
1 , 1 - 8 
37) 0.5 = 2 
3 - 2 
1 = 8 1 
8 1 
of the beads in the box are red. 
3 - 8 1 
8 
2 , 2 units: 40 beads, 
= 8 
1 unit: 40 ÷ 2 = 20 
8 units: 20 x 8 = 160, There are 160 beads in 
the box. 
38) Luna 
George 880 
Tim 
880 ÷ 11 = 80, Tim has 80 stamps. 80 x 8 = 640, Luna has 640 stamps. 
39) 23.65 – 4.65 = 19 
19 x 8 = 152. 
The number is 152. 
42) 1800 - 720 = 1080, 1080 ÷ 3 = 360 
b is 360. 360 x 2 = 720, ∠a is 720. 
41) Jenifer 
Liz $635 
Daniel 
$635 – $50 = $585, $585 ÷ 13 = $45, $45 x 3 = $135, Liz spent $135 and had $135 left. 
$135 + $135 = $270, Liz had $270 at first. 
43) 18 x 12 = 216, 216 + 15 = 221 
Daisy had $221 at first. 
12 – 3 = 9 
Each magazine cost $9 during the fun fair. 
221 ÷ 9 = 24 remainder 5. 
24 – 18 = 6 
She could buy 6 more magazines during the 
fun fair with the original amount of money. 
44) 5 + 7 = 12 
With 12 more stickers, each friend would be 
given 2 more stickers. 
12 ÷2 = 6, There are 6 friends. 
6 x 7 = 42, 42 + 5 = 47 
Carol had 47 stickers at first. 
45) $14.40 x 3 = $43.20, Jerry spent $43.20 from Monday to Wednesday. 
$32.60 x 3 = $97.80, He spent $97.80 from Friday to Sunday. 
$43.20 + $25.80 + $97.80 = $166.80, He spent $166.80 for the whole week. 
$166.80 + 50 = $216.80, Jerry had $216.80 at first.
Answers to Semestral Assessment 2: Mock Paper 3 
3 Q1 Q2 2 
Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 
1 3 3 2 2 3 2 3 4 2 1 1 4 2 1 
16) 8000 17) 1120 18) 0.532 2 
14 1 
1 
0.452 
65 20) 330 
19) 12 
21) 34 000 22) 1.4 cm 23) 24 
13 24) 8 25) $4 
26) $425 27) (a) BC, (b) 
AB 
28) 9 29) $7 30) 320 cm2 
31) 100 32) 40 cm 33) school 34) ∠CDE = 650 
and ∠ABG = 180 
35) $1050 
36) $3.75 + $7.55 = $11.3, The belt cost $11.3. 
$3.75 x 6 = $22.5, The shirt cost $22.5. 
$3.75 + $11.3 + $22.5 = $37.55 
Tim paid $37.55 altogether. 
37) $4 + $2 = $6, $4 + $6 = $10 
A bowl and a spoon cost $10 together. 
$320 ÷ $10 = 32 
Andy bought 32 bowls and 32 spoons. 
$2 x 32 = 64 
He spent $64 more on bowls than on spoons. 
38) 49 + 86 = 135 
After Leona gave 86 cards to Jimmy, each of 
them had 133 cards. 
135 + 86 = 221, Leona had 221 cards at first. 
4 + 3 
39) 9 
1 = 9 7 
, 9 7 
of her money was spent. 
1 unit: $450 ÷ 9 = $50 
2 units: $50 x 2 = $100,She had $100 left. 
2 x 350 = 140 
There are 140 blue marbles in the box. 
7 
40) 5 
2 x 350 = 100 
There are 100 red marbles in the box. 
1 x 100 = 25 
7 
3 x 140 = 60, 4 
60 + 25 = 85, 
85 marbles are removed from the box. 
350 – 85 = 265 
There are 265 marbles left in the box. 
41) 3 x 3 cm = 9 cm 
The length of the bigger square is 9 cm. 
3 cm x 3 cm = 9 cm2 
9 cm x 9 cm = 81 cm2 
9 cm2 + 
81 cm2 = 90 cm2 
The area of the figure is 90 cm2. 
42) 1 unit: 15 ÷ 5 = 3 cm, 9 units: 3 x 9 = 27 cm, 
Ribbon B is 27 cm long. 
43) 2 units: $72 
1 unit: $72 ÷ 2 = $36 
Nancy had $36 at first. 
$36 x 5 = $180 
Mandy had $180 at first. 
44) 
$210 - $25 + $19 = $204, $204 ÷ 3 = $68 
The dress cost $68. 
$68 - $19 = $49, The wallet cost $49. 
45) Area of A = Area of B 
The length of A = The length of the larger 
square = 9 cm. 
The breadth of A = The length of the smaller 
square = 6 cm 
9 + 6 = 15 cm 
The length of the largest square is 15 cm 
15 x 15 = 225 cm2 
The area of the figure is 225 cm2.
Answers to Semestral Assessment 2: Mock Paper 4 
Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 
3 3 2 1 2 4 1 2 4 3 2 4 1 3 4 
16) 89 18) 14 079 19) 59.22 20) 0.49 
8 
14 2 
3 17) 20 
21) 16.61 22) 0.057, 0.075, 
0.507, 0.705 
23) 24 24) 15 25) 2.08 m 
26) $4.25 27) $690 28) 5 h 30 min 29) 64 cm 30) 1300 
31) 900 32) $149.5 33) 84 cm 34) 8 days 35) 7.05 p.m. 
36) 1 unit: $1396 ÷ 4 = $349 
9 units: $349 x 9 = $3141 
Laura has $3141. 
37) 1 unit : $25 - $12 = $13, Fred had $13 at first. 
$13 x 2 = $26, Mary had $26 at first. 
$13 + $26 = $39, They had $39 at first. 
38) 5 + 2 x 2 = 9 
2 jeans and 5 shirts cost as much as 9 shirts. 
$216 ÷ 9 = $24 
The shirt cost $24. 
$24 x 2 = $48. 
The jean cost $48. 
39) 13 x 4 = 52 cm 
The perimeter of the square is 52 cm. 
13 + 4 = 17 cm 
The length of the rectangle is 17 cm. 
17 x 2 = 34, 52 – 34 = 18, 18 ÷ 2 = 9 cm 
The breadth of the rectangle is 9 cm. 
17 x 9 = 153 cm2 
The area of the rectangle is 153 cm2. 
40) 3 units: 48 x 2 = 96 paper clips 
Jane had 96 paper clips more than Taylor. 
1 unit: 96 ÷ 3 = 32 
Taylor had 32 paper clips after giving 48 
ones to Jane. 
32 + 48 = 80, 
Taylor had 80 paper clips at first. 
41) 33 m2 – 8 m2 = 25 m2 
25 m2 x 4 = 100 m2 
The area of the square is 100 m2. 
100 = 10 x 10 
The length of the square is 10 m. 
42) 5 x $4.25 = $21.25 
3 x $2.7 = $8.1 
$21.25 + $8.7 = $29.35 
The usual price for 5 boxes of biscuits and 3 
boxes of oranges is $29.35. 
$29.35 - $23.89 = $5.46 
Daisy saves $5.46. 
43) 900 ml = 0.9 l 
4 bottles of water: 0.9 x 4 = 3.6 l 
Mango juice: 3.6 + 0.45 = 4.05 l 
Each glass: 4.05 ÷ 9 = 0.45 l 
44) $3.8 x 4 = $15.2 
8 pens and 4 erasers cost $15.2. 
$35 – $15.2 = $19.8 
2 umbrellas cost $19.8. 
$19.8 ÷ 2 = $9.9 
The umbrella cost $9.9. 
45) 80 – 8 = 72 cm 
48 – 8 = 40 cm 
40 x 72 = 2880 cm2 
The covered area is 2880 cm2. 
48 x 80 = 3840 cm2 
The area of the cardboard is 3840 cm2. 
3840 – 2880 = 960 cm2 
The area that is not covered is 960 cm2.
Answers to Semestral Assessment 2: Mock Paper 5 
Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 
1 3 4 1 4 1 3 2 1 2 4 3 2 2 3 
16) 98 425 17) 25 900 18) 17.81 19) 3 3 
11 24) 269 25) 720 s 
14 3 
1 20) 0.09 
21) 8 1 
22) 0.0468, 
0.0648, 0.4068, 
0.864 
23) 5 
26) 620 27) $108 28) $21.4 29) 133 cm2 30) 47 
31) $9.9 32) 9 33) 7 
4 34) 30 trees 35) Bus stop 
36) Each side of ABCD: 11 cm x 11 cm = 121 
cm2. Each side of the shaded square: 4 cm x 4 
cm = 16 cm2 
11 – 4 = 7 cm, 7 ÷ 2 = 3.5 cm 
The length of CE is 3.5 cm. 
37) 28 – 5.7 = 22.3 kg, Box B is 22.3 kg. 
22.3 – 3.8 = 18.5 kg, Box C is 18.5 kg. 
28 + 22.3 + 18.5 = 68.8 kg 
Their total mass is 68.8 kg. 
1 = 4 3 
38) 1 - 4 
, 4 3 
x $840 = $630 
1 of his 
Jason had $630 after spending 4 
money. 
1 - 3 2 
1 , 3 
= 3 
1 x $630 = $210, He had $210 
left. 
39) $60 x 7 = $420, $60 x 8 = $480 
They save $420 + $480 = $900 altogether. 
40) 200 cm: 10 breadths of the small rectangle 
1 breadth: 200 ÷ 10 = 20 cm 
20 x 2 = 40 cm 
The breadth of the figure is 40 cm. 
20 x 3 = 60 cm 
The length of the figure is 60 cm. 
40 x 60 = 2400 cm2 
The area of the figure is 2400 cm2. 
41) Total number of stickers after Andrew bought 
35 more: 89 + 35 = 124 
Total number of stickers after Allan lost 18 
stickers: 124 – 18 = 106 
106 – 8 = 98 
98 ÷ 2 = 49, Allan has 49 stickers now. 
49 + 8 = 57, Andrew has 57 stickers now. 
57 – 35 = 22, Andrew had 22 stickers at first. 
42) There are 10 bikes. 
43) Figure 2: 2 x 2 = 4, Figure 3: 4 x 4 = 16 
Figure 4: 8 x 8 = 64, Figure 5 : 16 x 16 = 256 
There are 256 small squares. 
44) 3 p.m. – 11.30 a.m. = 3 h 30 min = 1 h + 2h 
30 min 
$0.65 x 5 = $3.25 
$2.5 + $3.25 = $5.75 
He paid $5.75 a day. 
$5.75 x 2 = $11.5 
He paid $11.5 together. 
45) 25 min + 2 hr = 2 hr 25 min 
Tom took 2 hr 25 min to complete his 
homework. 
3 hr 50 min + 2 hr 25 min 
= 6 hr 15 min = 375 min 
375 ÷ 3 = 125 min = 2 hr 5 min 
Jimmy took 2 hr 5 min to complete his 
homework.

Outreach p4-math

  • 1.
    Primary 4 Mathematics Ace the Exam with My 24/7 Personal Tutor Detailed Explanation of ALL Questions by Tutor in Virtual Classroom Consulting Editor: Dr Zhang Yong
  • 2.
    © Outreach EdusysPte Ltd ALL RIGHTS RESERVED. No part of this book and the accompanying CDROM may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, CD duplication, replication, or by any information storage and retrieval system, without permission in writing from the Publisher. i i First Published 2010 ISBN: 978-981-4275-15-6 Published by: Outreach Edusys Pte Ltd Distributed by: Outreach System Pte Ltd 20 Shaw Road, #07-03 Singapore 367956 Tel: +65 91162024 Fax: +65 31507345 email: book.orlesson.org Website: http://www.orlesson.org Please check URL regularly for new releases and promotions. Sample chapter and lesson for each title can be downloaded from above URL. Purchase online or call/SMS 9116-2024 today. FREE home delivery (one location within Singapore) for purchases above S$60/=.
  • 3.
    Preface This bookis written to assist pupils in preparing for the Primary 4 Mathematics examinations. There are a total of 10 specially crafted examination style papers. The main features of the papers are as follows. 1. Questions are modelled after examination papers set by top well known Singapore schools. 2. Questions are crafted to highlight common misconceptions in each of ii i the topics. This book comes with a multimedia CDROM. The CDROM contains detailed explanations of every question in each of the papers by our teacher. These lessons ensure pupils understand the methods that are used to solve each of the questions Outreach Book Alive series brings the “tuition teacher” to you at zero cost. You may also want to try our online programme. These are interactive “diagnostic” modules consisting of multiple choice questions. The incorrect options to each question are carefully crafted based on specific misconception in learners. If your child submit a wrong answer, our system will dynamically diagnose your child’s problem and provide an explanation on why the answer is wrong, and what is the correct way to solve such questions. Visit http://www.orlesson.org today.
  • 4.
    iv Contents SemestralAssessment 1 Paper 1 1 Semestral Assessment 1 Paper 2 16 Semestral Assessment 1 Paper 3 30 Semestral Assessment 1 Paper 4 45 Semestral Assessment 1 Paper 5 57 Semestral Assessment 2 Paper 1 70 Semestral Assessment 2 Paper 2 82 Semestral Assessment 2 Paper 3 94 Semestral Assessment 2 Paper 4 108 Semestral Assessment 2 Paper 5 121 Suggested Answers 135 Free Past Year School Exam Papers (from 2004 onwards) for download and print. Visit http://www.orlesson.org for links and download instructions. Subscribe to Outreach Lesson Online Access for hundreds of hours of lessons, and thousands of questions. Less than 70 cents a days for unlimited access to ALL subjects. For details, visit http://www.orlesson.org.
  • 5.
    Semestral Assessment 1– Mock Paper 1 Duration: 1 hr 45 min Marks Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks each. For each question, write the number corresponding to the correct option in the bracket provided. 1. Which of the following is not an equivalent fraction of 4 (2) 10 (4) 6 2 = 1 2 ? 5 (1) 10 6 15 (3) 20 12 30 ( ) 2. 59 074 = 50 000 + + 70 + 4. (1) 9 (2) 90 (3) 900 (4) 9000 ( ) 3. What is the missing number? ? 4 8 (1) 1 (2) 4 (3) 25 (4) 50 ( ) 4. What is the maximum number of 3-digit numbers that can be formed using the digits 3, 5, and 7? (1) 1 (2) 2 (3) 3 (4) 6 ( ) 5. The sum of the two numbers is 6470. The larger number is 580 more than the smaller number. What is the larger number? (1) 2945 (2) 3525 (3) 5890 (4) 7050 ( )
  • 6.
    6. What isthe highest common factor of 40 and 72? (1) 4 (2) 5 (3) 8 (4) 12 2 ( ) 7. Find the product of 8 tens and 80 ones. (1) 160 (2) 640 (3) 6400 (4) 8080 ( ) 8. Elaine has $4800 when rounded off to the nearest hundred. What is the greatest possible amount of money she has? (1) $4870 (2) $4849 (3) $4749 (4) $4707 ( ) 9. A square has a perimeter of 32 m. What is its area? (1) 8 m2 (2) 16 m2 (3) 32 m2 (4) 64 m2 ( ) 10. Find ‹x in the figure below. (1) 330 (2) 570 (3) 670 (4) 1230 ( ) 11. Emily and Jason save $5638 together every month. Jason saves $838 more than Emily. How much will Jason save in a year? (1) $38 856 (2) $57 600 (3) $67 656 (4) $77 712 ( )
  • 7.
    1 of acake and James ate 2 (4) 3 12. Emmy ate 3 1 of the remainder. What fraction 6 of the cake did they eat altogether? (1) 2 1 (2) 1 9 (3) 9 4 9 ( ) 13. If + + = 82 + = 47 + = 64 Find – . (1) 17 (2) 18 (3) 35 (4) 53 ( ) 14. Jane started walking to school at 9:30 a.m. When she reached school, she noticed that the minute hand of her watch had moved 1800 clockwise. What time did she reach school? (1) 10.30 a.m. (2) 10.00 a.m. (3) 9.00 a.m. (4) 8.30 a.m. ( ) 15. There were 420 people at the movie. 2 of them were men and the rest 7 were women. How many more women than men were there at the movie? (1) 60 (2) 120 (3) 180 (4) 300 ( ) Questions 16 to 35 carry 2 marks each. Write your answers in the spaces provided. For questions which require units, give your answers in the units stated. 16. Write fourteen thousand and seventy five in figures.
  • 8.
    4 17. Findthe remainder of 8096 ÷7. Ans: _____________________ 18. Subtract 389 from 2247. Round off the answer to the nearest tens. Ans: _____________________ 19. Use all the digits 3, 5, 0, 8 to form the smallest 4-digit number that is divisible by 5. Ans: _____________________
  • 9.
    20. What isthe value of X in the number line below? 5 Ans: _____________________ 21. Arrange the following fractions from the smallest to the greatest. , 1 12 2 , 3 9 , 5 5 4 22. What is the smallest even number that leaves a remainder of 4 when divided by 7? Ans: _____________________
  • 10.
    23. When theminute hand of a clock moves from 8.30 a.m. to 9.15 a.m., how 11 + + = _________. Express the answer as a mixed number. 6 many degrees has it moved? Ans: _____________________ 24. 3 4 6 5 12 Ans: _____________________ 25. The sum of 3 numbers is 125. If one of the numbers is changed from 46 to 29, what will be the sum of the new set of numbers? Ans: _____________________
  • 11.
    26. Katie andDaniel saved $400. Katie saved $60 more than Daniel. How 1 more than Mary. What fraction of 7 much money did Katie save? Ans: _____________________ 27. Mary ate 1 of a pizza and Tom ate 4 6 pizza did they eat altogether? Ans: _____________________ 28. Mr. Lee bought plane tickets for himself and his four children for a flight to Japan. He paid a total of $3850. If his adult ticket cost $950, how much did each child ticket cost? Ans: _____________________
  • 12.
    1 km morethan Brian. Rachel jogged 8 29. Find the value of A and B. 4 A A + A 6 B B 3 Ans: _____________________ 30. I am a 2-digit number. I am greater than 60 and smaller than 80. I am divisible by 7 and 9. What number am I? Ans: _____________________ 31. Brian jogged 4 km. John jogged 5 4 1 2 km more than John. How far did they jog altogether? Ans: _____________________
  • 13.
    32. Sabrina wasat X and facing the school. She then turned 450 anti-clockwise 3 turn clockwise. Where is she facing now? 9 and made a 4 Ans: _____________________ 33. If a factory produces 689 toys each day, how many toys does it produce in 3 weeks? Ans: _____________________
  • 14.
    34. ABCD isa square of sides 22 cm. E, F, G, H are the mid-points of each side of the square ABCD. Find the area of EFGH. 1 0 Ans: _____________________ 35. Eight teams are taking part in a football tournament. Each team played against every other team once. How many games are played altogether? Ans: _____________________
  • 15.
    Questions 36 to45 carry 4 marks each. Show your working clearly in the space below each question and write your answers in the spaces provided. 36. Leona bought one dress, one skirt and one T-shirt. The T-shirt cost $15. The skirt cost $17 more than the T-shirt. The dress cost twice as much as the T-shirt. How much did she spend on the three items? 1 1 Ans: _____________________ 37. Jessie had $1400. If she bought 12 books at $32 each and 24 magazines at $13 each, how much had she left? Ans: _____________________
  • 16.
    3 of hisstamps to his sister and 1 2 38. Andy gave 8 1 of them to his friends. He 4 had 720 stamps left. How many stamps did Andy have at first? Ans: _____________________ 39. Mrs. Lee had 30 boxes of cookies which contain 140 cookies each. She repacked all the cookies into packets of 9. She sold each packet for $3 and the remaining cookies at $0.50 each. How much did she collect from the sale of cookies altogether? Ans: _____________________
  • 17.
    40. Jerry hada 3-litre container filled to the brim with water. He poured 2 of them are blue. 1 3 3 4 litres out and divided the remaining amount of water equally into 9 bottles. How much water was there in each bottle? Ans: _____________________ 41. Daisy has some beads. 9 1 of them are red and the 3 remaining 52 are yellow. How many more yellow beads than blue beads does Daisy have? Ans: _____________________
  • 18.
    42. Book storeA has 40 fewer magazines than book store B. If 130 magazines are transferred from book store B to book store A, there will be twice as many magazines in book store A as in book store B. How many magazines are there altogether? 3 of her pocket money and saves the rest. If 1 4 Ans: _____________________ 43. Every month, Annie spends 7 she spends $90 every month, how much will she save in 3 years? Ans: _____________________
  • 19.
    44. There are128 men at a concert. There are twice as many women as there are men and thrice as many children as there are women. If all the people at the concert are put into groups of 8, how many groups are there together? 1 5 Ans: _____________________ 45. Find the sum of ‹a and ‹b. Ans: _____________________ --- End of Paper ---
  • 20.
    Semestral Assessment 1– Mock Paper 2 Duration: 1 hr 45 min Marks Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks each. For each question, write the number corresponding to the correct option in the bracket provided. 1. Round off the sum of 25 787 and 13 469 to the nearest hundred. (1) 39 300 (2) 38 960 (3) 38 900 (4) 38 000 2 is the same as __________ . 42 (2) 3 + 2 (4) 3 – 1 + 1 6 ( ) 2. In the number 52 890, the difference in the value of digit 5 and digit 8 is _________. (1) 3 (2) 40 (3) 4920 (4) 49 200 ( ) 3. The product of all the factors of 10 is _________. (1) 10 (2) 20 (3) 50 (4) 100 ( ) 4. 4 + 3 (1) 3 5 3 (3) 4 x 3 2 3 ( ) 5. The difference between two numbers is 84. If the bigger number is 4 times the smaller number, find the sum of the two numbers. (1) 88 (2) 112 (3) 140 (4) 164 ( )
  • 21.
    6. The figurebelow is made up of 2 squares. What is the perimeter of the 1 ? 1 7 figure? (1) 39 (2) 42 (3) 47 (4) 52 ( ) 7. What of the following is the best estimate of the angle X? (1) 450 (2) 900 (3) 1200 (4) 2250 ( ) 8. How many sixths are there in 3 3 (1) 20 (2) 19 (3) 10 (4) 5 ( ) 9. There are 34 pupils and 4 teachers in each class. How many people are there altogether in 20 classes? (1) 38 (2) 80 (3) 680 (4) 760 ( )
  • 22.
    10. In thefigure below, how many right angles are there altogether? (1) 4 (2) 8 (3) 10 (4) 12 1 8 ( ) 11. Jessie is facing north-west after making a 2250 anti-clockwise turn. Where did she face before she made the turn? (1) South (2) East (3) South-east (4) South-west ( ) 12. Square A and Rectangle B have the same area. The sides of Square A are 8 cm long. The breadth of Rectangle B is 4 cm. What is the perimeter of Rectangle B? (1) 16 cm (2) 24 cm (3) 40 cm (4) 64 cm ( ) 13. It takes John 6 seconds to cut a strip of paper into 2 equal pieces as shown below. How long would it take for him to cut a similar strip of paper into 10 pieces? (1) 48 seconds (2) 54 seconds (3) 60 seconds (4) 66 seconds ( )
  • 23.
    1 of abook on Saturday and 1 9 14. Henry read 4 2 of it on Sunday. If he read 5 50 pages on Saturday, how many pages had he left? (1) 50 (2) 70 (3) 80 (4) 200 ( ) 15. At a fun fair, 9 hot dogs were sold for every 7 hamburgers sold. If 72 hot dogs were sold, how many hamburgers were sold? (1) 8 (2) 16 (3) 56 (4) 63 ( ) Questions 16 to 35 carry 2 marks each. Write your answers in the spaces provided. For questions which require units, give your answers in the units stated. 16. 64 700 is 7000 more than _______________. Ans: _____________________ 17. Express 26 eighths as a mixed number. Ans: _____________________ 18. Write down the first two common multiples of 6 and 9. Ans: _____________________
  • 24.
    3 = _________. 2 0 19. 7 of 84 is _________. 12 Ans: _____________________ 20. 3 + 10 3 + 10 3 + 10 10 Express your answer in the simplest form. Ans: _____________________ 21. How many right angles does the minute hand on a clock go through if it moves for 3 h 30 min? Ans: _____________________ 22. A number when divided by 6, has a quotient of 57 and a remainder of 4. What is the number? Ans: _____________________
  • 25.
    23. Complete thenumber pattern below. 25, 50, 77, __________, 137, 170, 205. 2 1 Ans: _____________________ 24. How many pairs of parallel lines are there in the figure below? Ans: _____________________ 25. Mandy had $3570 in her bank account. She put in another $300. How much more money must she put in if she wants to have a sum of $5000? Ans: _____________________
  • 26.
    26. What isthe product of the largest factor of 11 and the largest factor of 5 of the shapes below are shaded, how many more shapes need to be 2 2 2010? Ans: _____________________ 27. If 9 shaded? Ans: _____________________ 28. A fruit seller had 50 boxes of apples. There were 36 apples in each box. If all the apples were sold at 9 for $2, how much money would make from the sale of apples? Ans: _____________________
  • 27.
    29. A farmerhad chickens, ducks and pigs in his farm. 5 of them were ducks. What fraction of his animals 2 3 4 of his animals 9 were chickens and 12 were pigs? Ans: _____________________ 30. Laura paid $171 for 5 toy cars and 3 dolls. A toy car cost $7 more than a doll. Find the cost of a toy car. Ans: _____________________ 31. Every 3 caps cost $33and every 5 T-shirts cost $60. Find the total cost of 9 such caps and 10 such T-shirts. Ans: _____________________
  • 28.
    32. At afun fair, every 6th customer was given a book and every 10th customer was given a T-shirt. What was the position of the first customer who received both a book and a T-shirt? 2 4 Ans: _____________________ 33. I am a 2-digit even number. I can be divided by both 3 and 11 without leaving a remainder. What is the smallest possible value of me? Ans: _____________________ 34. Study the number pattern carefully. Find the missing number. Ans: _____________________ ? 158 62 10 16 4 2 6 3 2
  • 29.
    35. The figurebelow is made up of 3 different squares. 4 of the people are adult and the rest are children. If there 2 5 AB = 12 cm and CB = DE = 8 cm. Find the length of EF. Ans: _____________________ Questions 36 to 45 carry 4 marks each. Show your working clearly in the space below each question and write your answers in the spaces provided. 36. In the zoo, 9 are 350 children, how many adults are there in the zoo? Ans: _____________________
  • 30.
    37. In agame, there were 40 rows of children. In each row, there were twice as many girls as boys. If there were 28 girls in each row, how many children took part in the game? 2 6 Ans: _____________________ 38. At a fun fair, the Primary Four pupils sold 25 greeting cards each. There were 38 pupils in each of the six Primary Four classes. What was the total number of cards sold by the pupils? Ans: _____________________
  • 31.
    39. Jimmy has5 times as many stickers as Ron. After Jimmy gave 96 stickers to Ron, both of them have an equal number of stickers. How many stickers do they have altogether? 2 7 Ans: _____________________ 40. Vicky has 50 more cards than Stella. Thomas has 180 cards less than the sum of Vick’s and Stella’s cards. If Vicky, Stella, and Thomas have 2200 cards altogether, how many cards does Stella have? Ans: _____________________
  • 32.
    41. Sam paid$7840 for 5 computers and 5 printers. Each computer cost thrice as much as each printer. What was the cost of each computer? 1 of a day doing her homework. Kelvin took 2 8 Ans: _____________________ 42. In Packet A, there are 56 marbles and 4 of them are black. 7 In Packet B, there are 72 marbles and 5 of them are black. 8 How many more black marbles are there in Packet B than in Packet A? Ans: _____________________ 43. Natalie spent 4 2 of the time 3 taken by Natalie to do his homework. How much faster is Kelvin compared Natalie? (Take 1 day = 24 hours) Ans: _____________________
  • 33.
    44. James earneda monthly salary of $2700. He saved 2 9 2 of his salary each 5 month for seven months, from January to July. In August, he spent 3 of 8 his savings on holidays. How much did he spend on his holidays? Ans: _____________________ 45. The figure below is made up of two squares. The area of the smaller square is 121 cm2. What is the perimeter of the larger square? Ans: _____________________ --- End of Paper ---
  • 34.
    Semestral Assessment 1– Mock Paper 3 Duration: 1 hr 45 min Marks Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks each. For each question, write the number corresponding to the correct option in the bracket provided. 1. What is the value of 5 thousands, 23 hundreds and 15 tens? (1) 5380 (2) 7315 (3) 7450 (4) 52 315 3 0 ( ) 2. 20 000 more than 34 860 is __________. (1) 54 860 (2) 36 860 (3) 32 860 (4) 14 860 ( ) 3. What are the common factors of 24 and 36? (1) 1, 3, 4, 6, 8 (2) 1, 2, 3, 4, 6, 12 (3) 1, 3, 6, 9, 12 (4) 1, 4, 6, 8, 16 ( ) 4. In the figure above, BC is parallel to __________. (1) AE (2) AB (3) CD (4) DE ( )
  • 35.
    5. The clockshows 4.30 p.m. How many 3 (2) 1 (4) 4 (2) 4 (4) 1 3 1 1 - turns will the minute hand have 4 to take to reach 7 p.m.? (1) 12 (2) 10 (3) 6 (4) 4 ( ) 6. 22 x 5 is the same as __________. (1) 20 x 5 (2) 2 x 2 x 5 (3) 2 x 5 x 11 (4) 20 x 2 x 5 ( ) 7. What fraction of the figure below is shaded? (1) 8 3 5 (3) 3 1 2 ( ) 8. What is 4 + 9 4 + 9 4 ? 9 (1) 3 9 12 27 (3) 1 3 1 3 ( ) 9. Lucy has seven $50 notes and three $20 notes. She wants to buy a camera that costs $520. How much more money does she need? (1) $110 (2) $310 (3) $450 (4) $590 ( )
  • 36.
    3 full ofwater. When another 135 ml of water is poured in, it 9 full. What is the capacity of the bottle? 3 2 10. Find the product of 1050 and 45. (1) 9450 (2) 45 050 (3) 47 250 (4) 56 700 ( ) 11. Mr. Tan is 41 years old now. Next year, his son will be 2 of his age. How 7 old is Mr. Tan’s son now? (1) 10 years old (2) 11 years old (3) 12 years old (4) 13 years old ( ) 12. A bottle is 5 becomes 10 (1) 45 ml (2) 150 ml (3) 225 ml (4) 450 ml ( ) 13. Jessica had 544 oranges. She packed them into boxes of 8 oranges each. How many boxes did she need to hold all the oranges? (1) 60 (2) 67 (3) 68 (4) 70 ( ) 14. Find the perimeter of the figure below. (1) 55 cm (2) 63 cm (3) 66 cm (4) 76 cm ( )
  • 37.
    15. Jackie andKathy had the same amount of money. After Jackie had spent $80, Kathy’s money was 5 times that of Jackie’s. How much money did they have altogether at first? (1) $100 (2) $112 (3) $120 (4) $200 3 3 ( ) Questions 16 to 35 carry 2 marks each. Write your answers in the spaces provided. For questions which require units, give your answers in the units stated. 16. Find the sum of 14 thousands, 27 hundreds, 34 tens and 48 ones. 17. Estimate 4213 ÷ 7 rounded off to the nearest hundred. 18. 1000 ÷ 25 = x 10. What is the missing number in the box? Ans: _____________________
  • 38.
    19. What isthe perimeter of the figure below? 3 4 Ans: _____________________ 20. What is the largest possible 5-digit odd number that can be formed using the digits 2, 4, 5, 8, and 9? Ans: _____________________ 21. The sum of all the factors of 32 is __________.
  • 39.
    3 of themare apples and the rest are 3 5 22. Arrange 1 , 6 4 3 , 2 1 , 3 2 in descending order. 23. How many angles in the figure below are greater than 900? Ans: _____________________ 24. Complete the following pattern: 6, 11, 21, A, 56, 81, B. Ans: _____________________ 25. There are 96 fruits in a basket. 8 oranges. How many oranges are there in the basket? Ans: _____________________
  • 40.
    26. The figurebelow is not drawn to scale. Find ‹x. 3 6 Ans: _____________________ 27. Mandy bought 28 packets of candies. Each packet contains 16 candies. She gave each of her 8 friends an equal number of candies. How many candies did each of her friends get? Ans: _____________________ 28. Express 50 cm as a fraction of 3 m. Ans: _____________________
  • 41.
    29. Ryan bought4 similar jackets. Caroline bought 6 similar dresses and paid $42 more. If each dress cost $32, how much did each jacket cost? 3 of her paper clips and had 40 paper clips left. How many 3 7 Ans: _____________________ 30. Liz gave away 8 paper clips did she give away? Ans: _____________________ 31. A is a square and B is a rectangle. They have the same area. What is the perimeter of rectangle B? Ans: _____________________
  • 42.
    32. A leakingtap fills a tank at a rate of 350 ml every 15 minutes. How many litres of water will there be in the tank after 3 hours? 3 8 Ans: _____________________ 33. Tim is as twice as old as Ken. Next year Ken will be twice as old as Nancy. If Nancy is 12 years old now, how old is Tim? Ans: _____________________ 34. The figure below is made up of 6 identical squares. The perimeter of the figure is 126 cm. What is the length of each side of the square? Ans: _____________________
  • 43.
    3 of themand packed the rest into sets 1 its length. The perimeter of the 3 9 35. Alan had 240 cookies. He sold 5 of 8. How many sets did he pack? Ans: _____________________ Questions 36 to 45 carry 4 marks each. Show your working clearly in the space below each question and write your answers in the spaces provided. 36. The breadth of a rectangle is 3 rectangle is 72 cm. Find its area. Ans: _____________________
  • 44.
    37. Mr. Tanhad some money. He kept $500 for himself, gave $1700 to his wife and divided the rest equally among his three children. If each of his children received $175, how much did Mr. Tan have at first? 4 0 Ans: _____________________ 38. Cathy has some balloons. She gave Peter 1 of them, and gave Paul 4 1 12 more than what she gave Peter. If Cathy had given away 42 balloons in total, how many balloons has she left? Ans: _____________________
  • 45.
    39. Tim moneywas 3 times that of Jane. After Tim spent $500, Jane ‘s money was double Tim’s. How much money did they have at first? 1 kg, what is the mass of the basket? 4 1 Ans: _____________________ 40. A basket when fill with 15 papayas weighs 4 1 kg. If each papaya weighs 3 4 Ans: _____________________
  • 46.
    41. Michael, Tomand Joy collected 1360 stamps altogether. Michael collected 180 stamps more than Tom and Tom collected 155 stamps more than Joy. How many stamps did Michael collect? 4 2 Ans: _____________________ 42. Box A contains 14 fifty-cent coins and Box B contains some twenty-cent coins. If 6 coins are taken out of Box A, the value of coins in Box A is twice the value of coins in Box B. How many coins are there in Box B? Ans: _____________________
  • 47.
    43. There were100 oranges in Basket A and B altogether. 20 oranges were transferred from Basket A to Basket B and 35 oranges were transferred from Basket B to Basket A. Now Basket A has thrice the number of oranges in Basket B. How many oranges were there in each basket at first? 5 of the girls were eliminated. If 15 girls 4 3 Ans: _____________________ 44. An equal number of boys and girls took part in a competition. After the first round, 4 of the boys and 5 8 remained in the competition, how many boys were eliminated? Ans: _____________________
  • 48.
    45. One movieticket cost $12. For every 8 tickets bought, 2 tickets were given free. Find the total cost of all the movie tickets for a group of 53 people. 4 4 Ans: _____________________ --- End of Paper ---
  • 49.
    Semestral Assessment 1– Mock Paper 4 Duration: 1 hr 45 min Marks Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks each. For each question, write the number corresponding to the correct option in the bracket provided. 1. 3129 less than ____ is 70 000. (1) 73 129 (2) 71 329 (3) 79 123 (4) 92 329 4 5 ( ) 2. Round off the product of 728 and 11 to the nearest ten. (1) 8 008 (2) 8 110 (3) 8 010 (4) 6 890 ( ) 3. 3 ten thousands, 98 tens 70 ones is ____. (1) 30 987 (2) 41 050 (3) 39 870 (4) 31 050 ( ) 4. What are the common factors of 60 and 120? (1) 2, 3, 4, 6, 10, 12,15,20, 30, 60 (2) 1, 2, 3, 4, 5, 6, 10, 12,15,20, 30, 60 (3) 2, 3, 4, 5, 10, 12,15,20, 30, 60 (4) 1, 2, 3, 4, 5, 6, 10, 12,15,20, 30 ( ) 5. What is the difference between the twelfth multiple of 13 and the ninth multiple of 9? (1) 75 (2) 81 (3) 45 (4) 4 ( ) 6. In 72 213, what is the value of the digit 7? (1) 7000 ones (2) 7 hundreds (3) 70 thousands (4) 700 tens ( )
  • 50.
    7. There werea number of children in the hall. The teacher could divide the children equally without any leftovers in groups of either 5 or 9. How many children were there? (1) 135 (2) 305 (3) 125 (4) 215 4 6 ( ) 8. All factors of a given number are listed below. What are the missing factors in the blanks? 1, ___, 5, 9, 15, ___. (1) 3 and 54 (2) 2 and 30 (3) 3 and 60 (4) 3 and 45 ( ) 9. A luggage cost four times as much as a haversack. If John spent $2 510 on 2 such luggage and 2 such haversacks, how much did 1 luggage cost? (1) $251 (2) $1 004 (3) $753 (4) $1 104 ( ) 10. A machine produced 8 451 toys in 9 days. If it produced the same number of toys in a day, how many toys would the machine be able to produce in a week? (1) 5 573 (2) 7 357 (3) 6 573 (4) 939 ( ) 11. ABCD is a rectangle. What is the value of angle BAD? (1) 50 o (2) 32o (3) 58 o (4) 42 o ( )
  • 51.
    12. The areaof a rectangular plot of land is 415 m2. If its breadth is 5 m, find its length. (1) 81 (2) 83 (3) 53 (4) 55 ( ) 13. ABCD is a rectangle with the perimeter of 65 m. Its length is 4 times its breadth. What is the area of the rectangle? (1) 169 m2 (2) 766 m2 (3) 676 m2 (4) 876 m2 ( ) 3 ? 4 7 14. How many fifths are there in 6 15 (1) 31 (2) 9 (3) 13 (4) 3 ( ) 15. A piece of wire 204 cm long is bent into the shape of a cube. What is the length of AB? (1) 13 cm (2) 11 cm (3) 17 cm (4) 15 cm ( ) Questions 16 to 35 carry 2 marks each. Write your answers in the spaces provided. For questions which require units, give your answers in the units stated. 16. What is 3 of 135? 5 Ans: _____________________
  • 52.
    17. List thefirst two common multiples of 27 and 126? 4 8 Ans: _____________________ 18. What is the sum of 31 hundreds, 63 tens and 44 thousands? Ans: _____________________ 19. In the 51 853, what is the difference between the values of the digit 5? Ans: _____________________ 20. A box contains 9 muffins and a tin contains 6 pieces of cookies. Mrs. Yeo wants to buy an equal number of muffins and cookies. What is the least number of boxes of muffins and tins of cookies that Mrs. Yeo must buy? _______ box(es) of muffins. _______ tin(s) of cookies. Ans: _____________________
  • 53.
    21. There were24 girls, 25 boys and 14 teachers in a hall of a school. What fraction of the people were students? 4 9 Ans: _____________________ 22. What is the quotient of 3304÷8? Ans: _____________________ 23. ABCD is a rectangle. Find angle a. Ans: _____________________ 24. Jane works 8 hours a day. She earns $15 for every hour she works. How much does she earn if she works for 31 days? Ans: _____________________ 25. List all the common factors of 45 and 135. Ans: _____________________
  • 54.
    26. Round offthe product of 45 and 737 to the nearest hundred. 5 0 Ans: _____________________ 27. Study the pattern and fill in the missing number. 5 5440, ____, 1 320, 264, 66, 22, 11, 11. Ans: _____________________ 28. Number A is 3500 when rounded off to the nearest hundred and number B is 8310 when rounded off to the nearest ten. a. What is the greatest possible value of number A? b. What is the greatest possible sum of the two numbers? Ans: _____________________ 29. Toni had a collection of stamps. He had fewer than 150. The number of stamps he had can be divided into groups of 5 stamps or 9 stamps. What was the greatest possible number of stamps he had? Ans: _____________________
  • 55.
    30. Square Ahas the area of 144 cm2. What is the perimeter of triangle B? 6 of a book on Monday and 5 1 Ans: _____________________ 31. 1 3 + 5 2 x351- 15 6 =? 8 Ans: _____________________ 32. Nina read 8 1 of the book on Sunday. What 5 fraction of the book must she read to finish reading the book? Ans: _____________________ 33. What fraction of the balls are black? Ans: _____________________
  • 56.
    34. Find theperimeter of the figure below. (two rectangles are congruent) 5 2 Ans: _____________________ 35. Name A B C D E Hours of working 8 5 9 12 7 $ / hour 56 30 5 16 18 The table above shows the number of working hours and remuneration per hour of working of 5 different people. Suppose you are their boss. What is the total money do you have to pay them? Ans: _____________________
  • 57.
    Questions 36 to45 carry 4 marks each. Show your working clearly in the space below each question and write your answers in the spaces provided. 36. Ms. White had $284 more than Yani. She gave $589 to Yani. If they had a total of $8428, how much did Ms. White have finally? 5 3 Ans: _____________________ 37. A can of coke cost $0.85 less than a bottle of coke. If 9 cans of coke and 3 bottles of coke cost $16.95, what is the cost of 11 such cans of coke? Ans: _____________________ 38. Darryl is attending a mathematics class in a lecture theatre. He is sitting at the fifth row from the stage. There are 5 seats to his left and 9 seats to his right. If there are 13 rows behind him, how many seats are there in the lecture theater? Ans: _____________________
  • 58.
    6 of hismoney to buy a new car. He had $356 left. How 36 liters of milk from cow B and 2 liters of 12 of what he needed in total, what was 5 4 39. John spent 8 much money did he have at first? Ans: _____________________ 40. In Uncle Tom’s farm, there were 3 cows: A, B, C. Uncle Tom got 3 1 5 liters of milk from cow A, 8 milk from cow C in order to make cheese for sale at a carnival. If the amount of milk he had was just 15 the total amount of milk needed? Ans: _____________________ 41. Find the area of the shaded region in the figure? Ans: _____________________
  • 59.
    42. 13 watermelonscost as much as 104 apples. Mrs. Young bought 3 watermelons and 13 apples for $14.80. How much did an apple cost? 1 the amount of money Mary had. 5 5 Ans: _____________________ 43. The amount of money Tom had was 5 They had $5562 altogether. How much money did Mary have? Ans: _____________________
  • 60.
    44. Mr. Georgeraises pigs and chickens on his own farm. The total number of legs of pigs and chickens is 1126. The number of pigs is 488 less than the number of chickens. How many chickens are there on the farm? 3 that of AB. If the perimeter of the rectangle is 5 6 Ans: _____________________ 45. The length of AD is 7 1380 cm, find the area of the rectangle. Ans: _____________________
  • 61.
    Semestral Assessment 1– Mock Paper 5 Duration: 1 hr 45 min Marks Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks each. For each question, write the number corresponding to the correct option in the bracket provided. 1. In the 82 352, the value of the digit 3 is ___. (1) 3 (2) 30 ones (3) 30 (4) 30 tens 2 (2) 1- 10 (4) 7 (2) 24 103 (4) 3 5 7 ( ) 2. Which is the following is an equivalent fraction of 5 ? 8 (1) 3 1 4 (3) 16 10 12 ( ) 3. The sum of 3 2 and 3 10 is ___. 16 (1) 4 24 13 (3) 12 7 24 ( ) 4. 89 184 – 15 159 = ____. (1) 84 145 (2) 74 025 (3) 84 035 (4) 74 052 ( ) 5. Which of the following has the same value as 259×75? (1) 17 325 (2) 9 452 (3) 19 525 (4) 19 425 ( )
  • 62.
    6. 34 148when rounded off to the nearest hundred is ____. (1) 34 150 (2) 34 100 (3) 34140 (4) 34 200 5 8 ( ) 7. Which of the following angles is less than 90o? (1) A (2) C (3) B (4) D ( ) 8. x x + (1) 46 (2) 27 (3) 55 (4) 9 ( ) 9. What is the sum of 29 482 and 54 189? (1) 83 671 (2) 83 417 (3) 83561 (4) 82 617 ( ) = 729 = 55 = ?
  • 63.
    10. The figureis made up of three squares. The perimeter of the figure is 2 (2) 3 (4) 5 9 ___ cm. (1) 711 (2) 385 (3) 474 (4) 632 ( ) 11. John had a bottle of milk. He drank 2 in the morning and drank 8 3 of the 5 remainder in the evening. What fraction of the original amount of milk did he have left? (1) 5 3 10 (3) 20 3 5 ( ) 12. There are 345 red balloons and 335 yellow balloons. Toni mixes them together and divides them into groups of 8. How many groups of balloons are there? (1) 55 (2) 77 (3) 85 (4) 75 ( ) 13. How many right angles are there in the figure? (1) 2 (2) 4 (3) 1 (4) 5 ( )
  • 64.
    6 0 14.ABCD is a square. Which of the following is the right angle? (1) HAE (2) GAD (3) HEF (4) GEF ( ) 15. 515 × 47 - 359 = ___. (1) 24 205 (2) 23 175 (3) 23 846 (4) 23 126 ( ) Questions 16 to 35 carry 2 marks each. Write your answers in the spaces provided. For questions which require units, give your answers in the units stated. 16. Each letter represents a different digit. The same letter represents the same digit. The digit A= ___ and the digit B=___. Ans: _____________________
  • 65.
    6 1 17. What is the area of the uncoloured section of the figure? Ans: _____________________ 18. The product of 259 and 93 is ___. Ans: _____________________ 19. The quotient of 5922 divided by 7 is ___. Ans: _____________________ 20. Which line is parallel to line AB? Ans: _____________________
  • 66.
    7 of 356in mixed number? 6 2 21. What is the value of 24 Ans: _____________________ 22. This figure is drawn to scale. What is the value of angle a? Ans: _____________________ 23. The figure is made up of identical triangles. What fraction of the figure is unshaded? Ans: _____________________
  • 67.
    6 3 24.List all the factors of 126. Ans: _____________________ 1 3 + × − = 13 2 3 7 25. ? 10 5 20 Give your answer in mixed number. Ans: _____________________ 26. Which of the following number has more factors: 23, 7, 9, or 36? Ans: _____________________ 27. 19020 ÷ 30 = ___ × 2 Ans: _____________________ 28. The product of the 4th and 8th multiples of 4 is ___. Ans: _____________________
  • 68.
    29. Draw theline CB perpendicular to the line AB. 3 3 and 6 4 Ans: _____________________ 30. Study the pattern below. What is the missing number? 35 640, ___, 270, 27, 3 Ans: _____________________ 31. Find the difference between 35 12 . Give the answer in an 10 improper fraction. Ans: _____________________ 32. I am a 2-digit number. I am between 59 and 99. I am divisible by both 4 and 7. What number am I? Ans: _____________________ 33. The smallest 5-digit even number that can be formed with the digits: 3, 0, 7, 5, and 4 is____. Ans: _____________________
  • 69.
    2 15 ? 1 of the remaining ribbon to Jane. He had 36 cm of ribbon 6 5 34. How many eighths are there in 10 Ans: _____________________ 35. The total number of legs of pigs and chickens on a farm is 170. There are 59 chickens on that farm. How many pigs are there on the farm? Ans: _____________________ Questions 36 to 45 carry 4 marks each. Show your working clearly in the space below each question and write your answers in the spaces provided. 36. Rudy bought some ribbon. He used 105 cm of it to wrap a present. He then gave 3 left. How much ribbon did he have at first? Ans: _____________________
  • 70.
    37. Xiao Yunbought 13 boxes of pens. There were 135 pens in each box. She sold 1005 pens. How many pens were left? 6 6 Ans: _____________________ 38. Mr. George bought 7 boxes of muffins at $15 each and 8 tins of cookies at $23 each. How much did he have to pay in all? Ans: _____________________ 39. Jacky drinks 22.5 litres of milk in 9 days. How many liters of milk does he drink in a week? Ans: _____________________
  • 71.
    40. Sam has$140. He wants to buy a Playstation which cost $550. If he saves $82 a month, how many months does he need to save enough money to buy the Playstation? 1 of it to Dannie and another 6 7 Ans: _____________________ 41. Jane baked a pizza. She gave 3 1 of the 8 remainder to Timmy. She kept the rest for herself. a. How much more of the pizza did Dannie get than Timmy? b. What fraction of the pizza did Jane keep for herself? Ans: _____________________
  • 72.
    1 that ofAB. The perimeter of the rectangle is 8 of what Toni has. 6 8 42. The length of AD is 7 944 cm. Find the area of the rectangle. Ans: _____________________ 43. I have $1280. This is 5 How much money does Toni have? Ans: _____________________
  • 73.
    44. Toy Acosts $13 less than toy B. Henry bought 3 toys B and 5 toys A, the total cost was $239. How much does one toy A cost? 6 9 Ans: _____________________ 45. Farmer Lin rears a total of 90 ducks and cows on his farm. The total number of legs is 280. How many cows are there on his farm? Ans: _____________________
  • 74.
    Semestral Assessment 2:Mock Paper 1 Duration: 1 hr 45 min Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks each. For each question, write the number corresponding to the correct option in the bracket provided. 1. 57 thousands and 19 tens is the same as __________ . (1) 5719 (2) 57190 (3) 57019 (4) 58900 2 (2) 10 21 (4) 7 0 ( ) 2. How many eighths are there in 4 wholes? (1) 32 (2) 16 (3) 8 (4) 4 ( ) 3. 5 tens + 7 thousandths = _________ . (1) 0.57 (2) 5.7 (3) 5.007 (4) 50.007 ( ) 4. How many tenths are there in 60.6? (1) 6 (2) 60 (3) 606 (4) 6060 ( ) 5. Which of the following is a multiple of both 8 and 14? (1) 22 (2) 28 (3) 32 (4) 56 ( ) 6. What is the missing fraction? 85.48 = 80 + 5 + 2 + 5 (1) 25 4 (3) 50 3 ( ) 5
  • 75.
    7 (2) 20 1 (4) 7 1 7. 30 x 6 x 20 = ___________. (1) 150 (2) 200 (3) 3600 (4) 30620 ( ) 8. 4 kg 56 g of rice is packed into 6 packets. What is the mass of each packet in grams? (1) 76 g (2) 676 g (3) 751 g (4) 760 g ( ) 9. Find the value of 1 5 8 − 15 (1) 10 9 (3) 5 1 3 ( ) 10. Write 4 7 as a decimal. 40 (1) 4.175 (2) 4.130 (3) 4.012 (4) 4.740 ( ) 11. The perimeter of the rectangle below is 48 cm. If its length is twice its breadth, find the area of the shaded part. (1) 24 cm2 (2) 48 cm2 (3) 64 cm2 (4) 128 cm2 ( ) 12. The minute hand of a clock moved from 8:15 a.m. to 9.00 a.m. How many degrees did the minute hand move through? (1) 45 (2) 90 (3) 180 (4) 270 ( )
  • 76.
    13. Look atthe following shapes. How many shapes have both parallel and 7 2 perpendicular lines? (1) 1 (2) 2 (3) 3 (4) 4 ( ) 14. The length of a pole is 160 cm. 8 5 of it is buried underground. What is the length of the pole above ground? (1) 20 cm (2) 60 cm (3) 80 cm (4) 120 cm ( ) 15. Ryan had $18 more than Jane. After their mother gave each of them $12, they had $90 altogether. How much did Ryan have at first? (1) $24 (2) $36 (3) $42 (4) $48 ( ) Questions 16 to 35 carry 2 marks each. Write your answers in the spaces provided. For questions which require units, give your answers in the units stated. 16. 40 585 = 40 000 + __________ + 80 + 5. Ans: _____________________
  • 77.
    17. Round 85844off to the nearest hundreds. 7 3 Ans: _____________________ 18. Use the digits 4, 7, 9, 3, and 6 to form the smallest 5-digit even number. Ans: _____________________ 19. 9.78 + 2.83 = __________ . Ans: _____________________ 20. Find the value of 5097 x 8. Ans: _____________________
  • 78.
    21. 400 childrentook part in an international competition. There was an 1 of the girls have black hair. How many 20 as a mixed number in the simplest form. 7 4 equal number of girls and boys. 4 girls do not have black hair? Ans: _____________________ 22. Write 9 Ans: _____________________ 23. Name the pair of parallel lines in the figure below. A B D Ans: _____________________ E C
  • 79.
    24. What isthe value of A in decimal? 7 5 Ans: _____________________ 25. Brad is 1.75 m tall. He is 16 cm taller than Katie. What is Katie’s height in metres? Ans: _____________________ 26. A square has an area of 64 m2. The perimeter of a rectangle is twice the perimeter of the square. What is the perimeter of the rectangle? Ans: _____________________ 27. Write 9 hundredths as a decimal. Ans: _____________________ 0.6 A 0.8
  • 80.
    28. Trees wereplanted along Handy Road. The first tree was planted at one end of the road. The distance between any two trees was 9 m. The length of the road was 531 m. How many trees were planted? 7 6 Ans: _____________________ 29. Arrange the following decimals in descending order. 0.235, 2.032, 0.245, 0.198, 2.35 30. What fraction of figure below is shaded? Ans: _____________________ 31. Harry went from Singapore to Kuala Lumpur by bus. He arrived at Kuala Lumpur at 2.15 a.m. and the trip was 5 1 hours long. At what time did he 3 start the trip? Ans: _____________________
  • 81.
    32. I aman odd number. I am greater than 60 and smaller than 70. One of my factors is 7. What number am I? 7 7 Ans: _____________________ 33. Jessica spent $122.25 on 5 skirts. How much did each skirt cost? Ans: _____________________ 34. Find the area of the figure below. Ans: _____________________ 2 cm 4 cm 4 cm 6 cm 6 cm 1 cm
  • 82.
    35. Angela packed648 cookies into 9 boxes. She then shared two boxes of cookies equally with her mother, father and sister. How many cookies did each of them get from Angela? 7 8 Ans: _____________________ Questions 36 to 45 carry 4 marks each. Show your working clearly in the space below each question and write your answers in the spaces provided. 36. Mrs. Lee sold 236 oranges on Saturday. This was 88 fewer than the apples sold on the same day. On Sunday, she sold half of all the fruits sold on Saturday. How many fruits did she sell in the two days? Ans: _____________________ 37. Jack is 9 years old. His mother is 30 years older than him. In how many years’ time will his mother’s age be thrice his age? Ans: _____________________
  • 83.
    38. Mary has780 stickers. John has twice as many stickers as Mary. How many stickers must John give Mary so that they will have the same number of stickers? 1 full of water. After 40 litres of water were added to the 3 full. How much water is needed to fill up the whole 7 9 Ans: _____________________ 39. Lana bought 6 kg of sugar. She had 2.24 kg left after using the sugar for baking 8 cakes. How much sugar did she use for each cake? (Give the answer in kg.) Ans: _____________________ 40. A pail was 8 pail, it became 4 pail? Ans: _____________________
  • 84.
    1 of abook on Monday and 8 0 41. Kate read 5 7 of the book on Tuesday. After 15 that, 40 pages were unread. How many pages were there in the book? Ans: _____________________ 42. There 30 chickens and pigs in a farm. There are 84 legs altogether. How many chickens are there in the farm? Ans: _____________________ 43. The figure below is not drawn to scale. Find the value of angle X. Ans: _____________________ 70 X X
  • 85.
    44. The totalcost of 3 skirts and 5 dresses is $160. The total cost of 9 skirts and 13 dresses is $434. What is the cost of a dress? 8 1 Ans: _____________________ 45. The rectangle is made up of 3 identical rectangles. The perimeter of the large rectangle is 90 cm. Find the area of each small rectangle. Ans: _____________________ --- End of Paper ---
  • 86.
    Semestral Assessment 2:Mock Paper 2 Duration: 1 hr 45 min Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks each. For each question, write the number corresponding to the correct option in the bracket provided. 1. In which of the following numbers does the digit 5 stand for 5000? (1) 35 470 (2) 92 548 (3) 62 050 (4) 40 005 1 (2) 3 (4) 8 2 ( ) 2. 20 thousands, 35 hundreds, and eight is the same as __________ . (1) 20358 (2) 20430 (3) 23508 (4) 23580 ( ) 3. 1.55 x 6 = __________ . (1) 6.55 (2) 7.55 (3) 9.3 (4) 10.3 ( ) 4. Which of the following numbers is the factor of both 40 and 60? (1) 20 (2) 30 (3) 40 (4) 60 ( ) 5. What fraction of the shapes below are ? (1) 5 2 5 (3) 10 1 10 ( )
  • 87.
    6. In whichof the following sets are the numbers arranged from the greatest to the smallest? (1) 2045, 2405, 2504, 2540 (2) 2450, 2405, 2504, 2054 (3) 2504, 2450, 2504, 2540 (4) 2540, 2504, 2405, 2045 9 . What is the number in “?” ? 8 3 ( ) 7. 7.009 = 7 + ? (1) 1 (2) 10 (3) 100 (4) 1000 ( ) 8. How many right angles has the minute hand through if it moved from 4.30 p.m. to 6.15 p.m.? (1) 5 (2) 7 (3) 8 (4) 9 ( ) 9. When rounded off the nearest $1000, Mr. Tan has $50 000. How much money does Mr. Tan have? (1) 49 000 (2) 49 499 (3) 49 500 (4) 50 500 ( ) 10. The perimeter of a rectangle is 128 cm. Its length is thrice its breadth. What is the length of the rectangle? (1) 16 cm (2) 48 cm (3) 64 cm (4) 96 cm ( ) 11. What is the product of the 2 largest factors of 32? (1) 32 (2) 64 (3) 128 (4) 512 ( ) 12. A theatre has 420 seats. 4 out of every 7 seats are occupied. How many seats are unoccupied? (1) 60 (2) 105 (3) 180 (4) 240 ( )
  • 88.
    13. Mrs. Tansold some bags of fruits. There were 8 apples and 5 oranges in each bag. How many oranges did he sell if he sold a total of 195 fruits? (1) 39 (2) 75 (3) 120 (4) 975 3 of them were children. 8 4 ( ) 14. Which is the best estimate for the product 67 x 552? (1) 60 x 550 (2) 60 x 560 (3) 70 x 550 (4) 70 x 560 ( ) 15. There were 900 people at the zoo. 5 1 of the 3 children were primary pupils. How many primary pupils were there at the zoo? (1) 180 (2) 300 (3) 540 (4) 720 ( ) Questions 16 to 35 carry 2 marks each. Write your answers in the spaces provided. For questions which require units, give your answers in the units stated. 16. Subtract 8649 from 15729. Ans: _____________________ 17. There is a row of pupils. Mandy stands in the middle of the row. There are 12 girls on her left and 15 boys on her right. How many pupils are there in the row? Ans: _____________________
  • 89.
    18. What isthe lowest common multiple of 5 and 9? 8 5 Ans: _____________________ 19. Divide 353 by 8. Round off the decimal answer to 2 decimal places. Ans: _____________________ 20. Find the value of 3 + 1 . 4 16 Ans: _____________________ 21. Arrange the following fractions from the smallest to the greatest. ,15 18 18 7 , 7 9 Ans: _____________________ 22. Ben bought some paper clippers. He gave 3 of them to Dennis. If Ben 8 gave Dennis 105 paper clips, and kept the rest for himself, how many paper clippers did Ben have at first? Ans: _____________________
  • 90.
    2 and 0.8? 2 kg lighter than the watermelon. What is the 8 6 23. What is the difference between 1 3 Ans: _____________________ 24. + = 76 – = 28 What is the value of ? Ans: _____________________ 25. The rectangle below is not drawn to scale. Find x. x 290 Ans: _____________________ 26. Annie bought a watermelon and a papaya. The mass of the watermelon is 1 kg. The papaya is 1 3 3 3 total mass of the two fruits? Ans: _____________________
  • 91.
    27. Write 1.45as a fraction in its simplest form. 8 7 A B C D E Ans: _____________________ 28. How many times does the digit “8” appear from 70 to 90? Ans: _____________________ 29. Roshan’s age this year is greater than 30 and smaller than 50. His age is a multiple of 8 now. Two years later, his age will be a multiple of 7. How old is he now? Ans: _____________________ 30. It takes James 1 hour 15 minutes to travel from home to school. He reached school at 12.10 p.m. What time did he leave home? Ans: _____________________ 31. The figure below is not drawn to scale. All lines are straight. Name one pair of parallel lines from the figure. Ans: _____________________
  • 92.
    32. John andKathy had the same amount of money. After John spent $40 and Kathy spent $14, the amount of money Kathy had left was twice the amount of John had left. How much did each of them have at first? 8 8 Ans: _____________________ 33. A square piece of paper has a perimeter of 52 cm. Jenny want to cut out rectangles from it. Each rectangle has a breadth of 3 cm and a length that is twice its breadth. What is the maximum number of rectangles that can be cut out from it? Ans: _____________________ 34. Mary cut a string into two pieces. She bent them to the rectangle and the square below. The area of the square is equal to the area of the rectangle. Find the perimeter of the rectangle. 24 cm 36 cm Ans: _____________________
  • 93.
    35. Kim boughta pair of shoes for $32 and had 3 of the beads in the box are blue. 0.5 of them are green. The rest are red ones. If there are 40 fewer red beads than blue ones, how many beads are there in the box? 8 9 5 of her money left. How 13 much money did she have at first? Ans: _____________________ Questions 36 to 45 carry 4 marks each. Show your working clearly in the space below each question and write your answers in the spaces provided. 36. Mrs. Ho took 12 pupils to watch a movie. She paid $95 for the movie tickets altogether. If the ticket for each pupil costs $7, how much did the movie ticket for Mrs. Ho cost? Ans: _____________________ 37. 8 Ans: _____________________
  • 94.
    38. Luna has4 times as many stamps as George. George has twice as many stamps as Tim. They have 880 stamps altogether. How many stamps does Luna have? 9 0 Ans: _____________________ 39. Tim thought of a number. When he divided it by 8 and added 4.65 to the quotient, he got 23.65. Find the number. Ans: _____________________ 40. 3 identical car toys and 7 similar dolls cost $544 altogether. If a car toy cost thrice as much as a doll, find the total cost of a car toy and a doll. Ans: _____________________
  • 95.
    41. Jenifer, Lizand Daniel had $635 together. Jenifer spent 9 1 1 of her 4 money and Liz spent thrice the amount Jenifer spent. Daniel spent $50. If they had the same amount of money left, how much did Liz have at first? Ans: _____________________ 42. Given that ‹a is twice ‹b. Find ‹a. Ans: _____________________ 720 b a
  • 96.
    43. Daisy bought18 magazines at $12 each and had $15 left. During a fun fair, the magazine cost $3 less than the original. How many more magazines could Daisy buy with the original amount of money? 9 2 Ans: _____________________ 44. Carol had some stickers to give to her friends. If she gave each friend 7 stickers, she would have 5 stickers left over. If she gave each friend 9 stickers, she would need 7 more stickers. How many stickers did Carol have? Ans: _____________________
  • 97.
    45. Jerry spent$14.40 each day from Monday to Wednesday, $25.80 on Thursday and $32.60 each day from Friday to Sunday. How much did he have at first if he had $50 left? 9 3 Ans: _____________________
  • 98.
    Semestral Assessment 2:Mock Paper 3 Duration: 1 hr 45 min Marks Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks each. For each question, write the number corresponding to the correct option in the bracket provided. 1. What is the value of 7 in 70 963? (1) 70 000 (2) 7000 (3) 700 (4) 70 9 4 ( ) 2. The digit “3” in 67.038 stands for 3 ____________. (1) hundreds (2) tenths (3) hundredths (4) thousandths ( ) 3. Express 6 4 as a decimal. 16 (1) 6.4 (2) 6.16 (3) 6.25 (4) 6.025 ( ) 4. In the figure, which angle is greater than a right angle? (1) ‹a (2) ‹b (3) ‹c (4) ‹d ( ) 5. Which one of the following number is 74 600 when rounded off to the nearest ten? (1) 74 584 (2) 74 595 (3) 74 608 (4) 74 692 ( )
  • 99.
    6. Find thesum of all the factors of 32 that are multiples of 4. (1) 24 (2) 28 (3) 60 (4) 64 2 (2) 4 (4) 1 (2) 5 1 (4) 1 hours to travel from Brian’s house to city town by bus. If he 1 hours. How much longer does it take by bus 3 hr (2) 1 3 hr (4) 3 9 5 ( ) 7. Which of the following fractions is in its simplest form? (1) 8 3 7 (3) 12 6 16 ( ) 8. What is the fraction of the shaded part in the figure below? (1) 3 2 (3) 4 1 2 ( ) 9. Which one of the following figures contains both parallel and perpendicular lines? (1) (2) (3) (4) ( ) 10. Katie wants to buy a dress that costs $29.55 but she only has $17.90. How much more money does she need? (1) $2.70 (2) $11.65 (3) $12.55 (4) $12.65 ( ) 11. It takes 2 4 goes by car, it takes 1 2 than by car? (1) 4 1 hr 4 (3) 1 4 3 hr ( ) 4
  • 100.
    12. Which lineis the line of symmetry of the figure? (1) AB (2) CD (3) EF (4) GH 9 6 ( ) 13. Lim has $142. If he gives $ 34 to his brother, they will have the same amount of money. How much does Lim’s brother have at first? (1) $176 (2) $125 (3) $108 (4) $74 ( ) 14. ABCD is square. Given ECB = 180. Find ACE. A E B C D (1) 22.50 (2) 270 (3) 450 (4) 90 ( ) 15. Cheryl cut a cake to 16 slides. She ate 4 slides and her sister ate 1 of 4 the remaining cake. How many slides did her sister eat? (1) 3 (2) 4 (3) 9 (4) 12 ( )
  • 101.
    Questions 16 to35 carry 2 marks each. Write your answers in the spaces provided. For questions which require units, give your answers in the units stated. 16. What is the missing number in the blank? 48 059 = 40 000 + __________ + 50 + 7. 17. Fill in the blanks with the correct number in the number pattern below. 1225, 1190, 1155, __________, 1085. 18. Arrange the following in descending order. 9 7 2 3 1 0.532 0.452 2 Ans: _____________________ 19. Write 5 5 as a fraction. 12 Ans: _____________________
  • 102.
    20. The figurebelow is drawn to scale. What is the value of x? 9 8 Ans: _____________________ 21. Round 33 985 off to the nearest hundred. Ans: _____________________ 22. A stack of 10 one-dollar coins has a height of 3.4 cm. what’s the height of a stack of 4 one-dollar coins? Round off your answer to 1 decimal place. Ans: _____________________ 23. 11 - 12 3 = _________. 8 Ans: _____________________ 24. What is the highest common factor of 16 and 24? Ans: _____________________
  • 103.
    25. Amanda bought3 pencils and 1 pen for $11.5. The pen cost $1.5 more than the pencil. How much did the pen cost? 9 9 Ans: _____________________ 26. Frank’s salary was $3300. He spent 5 of his money and gave his wife 12 $1500. How much had he left? Ans: _____________________ 27. In the figure below, AD is parallel to (a) __________ and perpendicular to (b) __________. Ans: _____________________
  • 104.
    28. There are11 quarters and 14 eighths in a fraction. How many halves are 10 0 there in the fraction? Ans: _____________________ 29. 2 bags of mangos and 5 bags of oranges cost $29. If each bag of oranges cost $4 less than each bag of mangos, find the cost of a bag of mango. Ans: _____________________ 30. A rectangular piece of paper is folded as shown below. Find the area of the original piece of paper. Ans: _____________________
  • 105.
    1 of hercookies in the morning and 10 1 31. Mrs. Lee sold 3 1 of them in the 4 afternoon. She sold 140 cookies. How many cookies had she left? Ans: _____________________ 32. Fancy cut a wire into two pieces. She bent them to form a rectangle and a square. The length of the square is 8 cm and it is twice the breadth of the rectangle. The area of the square is the same as the area of the rectangle. Find the perimeter of the rectangle. Ans: _____________________ 33. Mary is facing the book store. She turns 2250 anti-clockwise. What is she facing? Ans: _____________________
  • 106.
    34. The figurebelow is not drawn to scale. ABCD is a rectangle. Find ‹CDE 10 2 and ‹ABG Ans: _____________________ 35. Ross saved $50 in the first month, $100 in the second month, $150 in the third month and so forth. Following this pattern, the amount of money he saved in the last month will be $300. How much money did he save in all? Ans: _____________________
  • 107.
    Questions 36 to45 carry 4 marks each. Show your working clearly in the space below each question and write your answers in the spaces provided. 36. Tim bought a shirt, a belt and a pair of socks from a store. The shirt cost 6 times as much as the socks. The belt cost $7.55 more than the socks. If the socks cost $3.75, how much did Tim pay altogether? 10 3 Ans: _____________________ 37. Andy bought an equal number of bowls and spoons with $320. Each bowl cost $2 more than a spoon and a spoon cost $4. How many more did he spend on the bowls than on the spoons? Ans: _____________________
  • 108.
    38. Leona hadsome cards. After giving 86 cards to Jimmy, they had the same number of cards. If Jimmy had 49 cards at first, how many cards did Leona have at first? 4 of her money at the shopping 1 of it at the spa. How much money did she have left? 10 4 Ans: _____________________ 39. Sam had $450 at first. She spent 9 center and 3 Ans: _____________________
  • 109.
    40. There are350 marbles in the box. 2 of the marbles are blue, and 5 1 of the red marbles are removed, how many beads will be left in 10 5 2 of 7 the marbles are red. The rest are green ones. If 3 of the blue marbles 7 and 4 the box? Ans: _____________________ 41. The figure below is made up of 2 squares. The length of the bigger square is thrice the length of the smaller square. Find the area of the figure. Ans: _____________________
  • 110.
    42. Ribbon Ais 15 cm shorter than ribbon B. 10 6 3 of ribbon A is equal to 4 1 of 3 ribbon B. What is the length of ribbon B? Ans: _____________________ 43. Mandy’s money was 5 times Nancy’s at first. After Mandy gave $72 to Nancy, Mandy had the same amount of money as Nancy. How much money did Mandy have at first? Ans: _____________________ 44. Carla bought a pair of shoes, a dress and a wallet for $210 together. The shoes cost $25 more than the dress and the wallet cost $19 less than the dress. What was the cost of the wallet? Ans: _____________________
  • 111.
    45. The figurebelow is made up of 2 squares and 2 rectangles A and B. Find 10 7 the area of the figure. Ans: _____________________
  • 112.
    Semestral Assessment 2:Mock Paper 4 Duration: 1 hr 45 min Marks Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks each. For each question, write the number corresponding to the correct option in the bracket provided. 1. 55 thousands and 8 tens are the same as __________. (1) 558 (2) 5580 (3) 55080 (4) 55800 2 1 x 8 = 10 8 ( ) 2. How many lines of symmetry are there in the figure below? (1) 1 (2) 3 (3) 5 (4) 10 ( ) 3. Fill the missing number in the “?”: 8 ? . 2 (1) 17 (2) 34 (3) 68 (4) 136 ( ) 4. What is 134.95 when is rounded off to 1 decimal place? (1) 135.0 (2) 135.9 (3) 134.0 (4) 134.9 ( )
  • 113.
    5. How manyminutes are there in 6 h 45 min? (1) 645 (2) 405 (3) 360 (4) 285 3 of 1 minute? Give your answer in seconds. 10 9 ( ) 6. Find the difference between 26.96 and 5.88. Round off your answer to the nearest tenth. (1) 2.08 (2) 20.0 (3) 21.0 (4) 21.1 ( ) 7. Which of the lines is parallel to AB? A B C D (1) CD (2) AC (3) BC (4) AD ( ) 8. What is 5 (1) 12 s (2) 36 s (3) 60 s (4) 72 s ( ) 9. Tom has 2 twenty-cent coins and 5 fifty-cent coins. He put some coins in the donation tin. How much money could he have donated? (1) $1.60 (2) $2.10 (3) $2.30 (4) $2.70 ( ) 10. Lim studied for a test from 21:50 to 1:45 the next day. How long did he study? (1) 2 h 55 min (2) 3 h 50 min (3) 3 h 55 min (4) 4 h 55 min ( )
  • 114.
    11. A numberis 600 when rounded off to the nearest hundred. Another number is 900 when rounded off to the nearest hundred. What is the smallest possible sum of the two numbers? (1) 1250 (2) 1400 (3) 1560 (4) 1620 5 hr to go to school from home by bus. How many seconds 11 0 ( ) 12. Laura took 12 did she take? (1) 25 s (2) 60 s (3) 300 s (4) 1500 s ( ) 13. Tom faced northeast after a 2250 clockwise turn. What direction was he facing before the turn? (1) South (2) West (3) Southeast (4) Southwest ( ) 14. ABCD is a rectangle and AEF is a right triangle. If BAE = 520, find FAC. (1) 380 (2) 450 (3) 520 (4) 1420 ( ) A C B F E D F
  • 115.
    15. The figurebelow is not drawn to scale. Find the perimeter of the figure. (1) 46 cm (2) 49 cm (3) 51 cm (4) 58 cm 11 1 ( ) Questions 16 to 35 carry 2 marks each. Write your answers in the spaces provided. For questions which require units, give your answers in the units stated. 16. Find the value of 1 - 1 - 4 3 . 8 Ans: _____________________ 17. Write 4.45 as a fraction in the simplest form. Ans: _____________________ 18. Write fourteen thousand and seventy-nine in figures. Ans: _____________________ 19. Find the value of 8.46 x 7. Ans: _____________________
  • 116.
    11 2 20.Express 49 as a decimal. 100 Ans: _____________________ 21. 23.4 – 6.79 = _________. Ans: _____________________ 22. Arrange the following numbers in ascending order 0.507, 0.057, 0.705, 0.075 Ans: _____________________ 23. What is the lowest common multiple of 6 and 8? Ans: _____________________ 24. Each of the symbols below represent a different number. + + + = 55 + + = 39 x = 64 What number does represent? Ans: _____________________
  • 117.
    25. A pieceof cloth is in red and orange. The red part is 0.75 m long and the orange part is 0.58 m longer than the red part. Find the length of the piece of cloth. 11 3 Ans: _____________________ 26. Anna bought 7 erasers at $2.25 each. She paid the cashier 2 ten-dollar notes. How much change did she get? Ans: _____________________ 27. Cheryl, May and Lily spent $1380 altogether. Cheryl spent thrice as much as May spent and May spent half of what Lily spent. How much money did Cheryl spend? Ans: _____________________ 28. Jenny started doing her part time job at 10:15 and finished at 16:30. Her tea break was 45 minutes long. How much time did she spend doing her job? Ans: _____________________
  • 118.
    29. The figurebelow is made up of 2 rectangles and a square. Find the 11 4 perimeter of the figure. Ans: _____________________ 30. The figure below is not drawn to scale. Find ‹x. Ans: _____________________ 31. The minute hand of a clock moved from 4.25 p.m. to 4.40 p.m. What was the angle moved by the minute hand? Ans: _____________________
  • 119.
    32. Liz spenthalf of her money on clothes and 0.2 of that amount on food. Then she spent the rest of her money on 3 books. If each book cost $29.90, how much did Liz spend on clothes? 1 DC, find the perimeter of ABCD. 11 5 Ans: _____________________ 33. The figure below shows the square DFEG and the rectangle ABCD. Given that DF = 2 DA and DG = 3 2 Ans: _____________________ 34. Jason earns $38.5 a day from his part time job. He spends $29.5 a day and saves the rest. If he wishes to buy some CDs that cost $16.5 and a watch that costs $49.9, at least how many days does he need to save to buy both of them? Ans: _____________________
  • 120.
    35. Sara’s watchis 45 minutes faster than the actual time. She wants to meet her friend at 7 p.m. It takes her 40 minutes to get from her house to the meeting place. What time is shown on Sara’s watch when she leaves her house? Given that she leaves the house just to arrive the punctually to meet her friend. 4 of what Laura has. If John has $1396, how much does Laura 11 6 Ans: _____________________ Questions 36 to 45 carry 4 marks each. Show your working clearly in the space below each question and write your answers in the spaces provided. 36. John has 9 have? Ans: _____________________
  • 121.
    37. Mary’s moneywas twice that of Fred’s. After Mary received $12 and Fred received $25 from their parents, they had the same amount of money. How much money did they have together at first? 1 as much as a pair of jeans, find out the cost of a pair of 11 7 Ans: _____________________ 38. Jane bought 2 identical pairs of jeans and 5 identical shirts for $216. If a shirt cost 2 jeans. Ans: _____________________ 39. Rectangle A and square B have the same perimeter. The side of the square is 13 cm. The length of the rectangle is 4 cm longer than the side of the square. Find the area of the rectangle. Ans: _____________________
  • 122.
    40. Taylor andJane had the same number of paper clips. After Taylor gave 48 paper clips to Jane, Jane had 4 times as many paper clips as Taylor. How many paper clips did Taylor have at first? 11 8 Ans: _____________________ 41. In the square below, the area of the shaded region is 33 m2. Find the length of the square. Ans: _____________________ 42. The usual price of box of biscuits is $4.25 and a box of oranges cost $2.70. Daisy paid a total $23.89 for 5 boxes of biscuits and 3 boxes of oranges. How much money did she save? Ans: _____________________
  • 123.
    43. Jenifer mixed4 bottles of water with 0.45 litres mango syrup to make mango juice. Each bottle contained 900 ml. She then poured equal amount of the mixture into 9 identical glasses. How many litres of mango juice were there in each glass? 11 9 Ans: _____________________ 44. John bought 2 umbrellas, 8 pens and 4 erasers for $35. The cost of 2 pens and 1 eraser was $3.80. How much did 1 umbrella cost? Ans: _____________________
  • 124.
    45. The figurebelow is not drawn to scale. Jia Lin pasted a rectangle picture on a cardboard measuring by 48 cm x 80 cm. He left a 4cm border all around the picture. What is the area of the cardboard not covered by the picture? 12 0 Ans: _____________________
  • 125.
    Semestral Assessment 2-Mock Paper 5 Duration: 1 hr 45 min Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks each. For each question, write the number corresponding to the correct option in the bracket provided. 1. In which of the following numbers does the digit 7 stand for 70? (1) 35 070 (2) 48 703 (3) 67 094 (4) 70 658 3 (2) 3 of 1 kg? Give your answer in grams. 12 1 ( ) 2. What is the missing number represented by “?” ? 50.070 = 50 + 7 ? (1) 1 (2) 10 (3) 100 (4) 1000 ( ) 3. How many sevenths are there in 3 wholes? (1) 7 7 3 (3) 7 (4) 21 ( ) 4. What is 4 (1) 750 g (2) 75 g (3) 7.5 g (4) 0.75 g ( ) 5. Which one of the following is a factor of both 16 and 40? (1) 56 (2) 24 (3) 16 (4) 8 ( )
  • 126.
    6. Which lineis parallel with CD in the figure below? (1) AB (2) BE (3) AE (4) BD 1 (2) 5 (4) 1 of the pizza and gave 1 of the remainder to her friend. 1 (2) 3 (4) 12 2 ( ) 7. A square has an area of 49 cm2. Find its perimeter. (1) 14 cm (2) 21 cm (3) 28 cm (4) 49 cm ( ) 8. Find the value of 11 − 1 . 6 18 (1) 2 4 9 (3) 9 5 6 ( ) 9. Mary ate 4 3 What fraction of the pizza was left? (1) 2 2 3 (3) 4 5 12 ( ) 10. Vanessa went to her school at 8:30 and left at 16:15 on the same day. How long was she at school? (1) 7 h 15 min (2) 7 h 45 min (3) 8 h 15 min (4) 8 h 45 min ( )
  • 127.
    11. Which oneof these figures is a symmetric figure ? (1) (2) (3) (4) 12 3 ( ) 12. Find the sum of all the factors of 32 that are multiples of 4. (1) 20 (2) 28 (3) 60 (4) 64 ( ) 13. Find the missing number in the box. 120 x 89 = 125 x 89 + 15 x 89 - x 89 (1) 260 (2) 20 (3) 10 (4) 5 ( ) 14. Cherry has a rectangle cardboard which measures 29 cm by 18 cm. She wants to cut out as many small rectangular pieces as she can from it. Each small rectangular piece is measured by 6 cm x 4 cm. What is the maximum number of small rectangular pieces that she can get? (1) 24 (2) 18 (3) 16 (4) 8 ( ) 15. Justin has $21 more than Ariel. After their mother gave each of them $12, both of them have $83 together. How much money did Justin have at first? (1) $19 (2) $38 (3) $40 (4) $52 ( )
  • 128.
    Questions 16 to35 carry 2 marks each. Write your answers in the spaces provided. For questions which require units, give your answers in the units stated. 16. Using the digits 2, 4, 5, 8, 9 to form the greatest 5-digit odd number. 20 as a mixed number in its simplest form. 5 and 0.5? 12 4 Ans: _____________________ 17. Round off 25 890 to the nearest hundred. Ans: _____________________ 18. 26.5 – 8.69 = _________. Ans: _____________________ 19. Write 6 Ans: _____________________ 20. Write 9 hundredths as a decimal. Ans: _____________________ 21. What is the difference between 8 Ans: _____________________
  • 129.
    22. Arrange thefollowing numbers from the smallest to the greatest. 1 hr to go to school from home. How many seconds did he 12 5 0.4068, 0.0468, 0.0648, 0.864 Ans: _____________________ 23. Find the value of 1+ 7 + 10 1 . 2 Ans: _____________________ 24. There are 458 people at a concert. There are 80 more women than men. How many women are there at the concert? Ans: _____________________ 25. Dennis took 5 take? Ans: _____________________
  • 130.
    26. The figurebelow is drawn to scale. Measure and write down the size of 12 6 ‹X. Ans: _____________________ 27. Jessie spent $60 on a watch and had 4 of money left. How much money 9 did she have at first? Ans: _____________________ 28. Elaine bought 6 cakes for $128.34. How much did each cake cost? Round off your answer to 1 decimal place. Ans: _____________________
  • 131.
    29. Find thearea of unshaded region in the figure below. 12 7 Ans: _____________________ 30. + = 68 - = 26 What is the value of ? Ans: _____________________ 31. A bag of 5 oranges cost $2.70 while an orange cost $0.60. If Darwin wants to buy exactly 18 oranges, what is the minimum amount of money he has to pay? Ans: _____________________
  • 132.
    32. Find thenumber missing in “?” in the figure below. 1 of the figure below were to be shaded, what fraction of 12 8 Ans: _____________________ 33. If another 4 the whole figure would be shaded? Give your answer in its simplest form. Ans: _____________________
  • 133.
    34. Mr. Tanwants to plant trees of 6 m apart on all sides of his rectangle garden. The length of the garden is 60m and the breadth of the garden is 30m. How many trees does Mr. Tan need? 12 9 Ans: _____________________ 35. Daniel is standing at point marked X and facing MRT station. What will he face if he turns 2700 clockwise? Ans: _____________________
  • 134.
    Questions 36 to45 carry 4 marks each. Show your working clearly in the space below each question and write your answers in the spaces provided. 36. The area of the square ABCD is 121 cm2 and the area of the shaded square is 16 cm2. Given CE = FD, find the length of CE. 13 0 Ans: _____________________ 37. Box A is 5.7 kg heavier than box B. Box B is 3.8 kg heavier than box C. If box A is 28 kg, what is the total mass of 3 boxes? Ans: _____________________
  • 135.
    38. Jason had$840 at first. He spent 1 of the money at the book store and 4 2 of the remainder to his mother. How much money had he left? 6 of Carol’s savings. Laura saves $60 13 1 gave 3 Ans: _____________________ 39. 3 of Laura’s savings is equal to 4 7 more than Carol. How much do they save together? Ans: _____________________
  • 136.
    40. The figurebelow is made up of 3 identical rectangles. The perimeter of the figure is 200 cm. Find the area of the figure. 13 2 Ans: _____________________ 41. Andrew and Allan had a total of 89 stickers at first. After Andrew bought 35 more stickers and Allan lost 18 stickers, Andrew now have 8 more stickers than Allan. How many stickers did Andrew have at first? Ans: _____________________
  • 137.
    42. A bikehas 2 wheels and a car has 4 wheels. There are 18 bikes and cars altogether. There are 52 wheels together. How many bikes are there? 13 3 Ans: _____________________ 43. All the figures below are squares. Study this pattern carefully. Figure 1 Figure 2 Figure 3 Figure 2 are divided into 4 small squares and figure 3 are divided into 16 small squares. How many small squares are divided in figure 5? Ans: _____________________
  • 138.
    44. The parkingcharges at ABC car park is $2.5 for the first hour and $0.65 for every subsequent 30 min everyday. Mr. Lee parked his car at the car park from 11.30 a.m. to 3pm on Saturday and Sunday. How much did he pay together? 13 4 Ans: _____________________ 45. Paul took 3 h 50 min to do his homework. Tom started to do his homework at 19:35 and finished at 22:00. Jimmy took 1 of the total time 3 taken by both Paul and Tom to do his homework. How long did Jimmy take to complete his homework? Ans: _____________________
  • 139.
    Answers to SemestralAssessment 1 – Mock Paper 1 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 3 4 3 4 2 3 3 2 4 2 1 4 1 2 3 16) 14 075 17) 4 18) 1860 19) 3085 20) 5 , , , 22) 4 23) 2700 24) 2 28) $725 29) A = 7, B = 5 30) 63 13 5 4 1 4 3 1 4 21) 12 9 2 5 213 25) 108 15 26) $230 27) 3 31) 32/5 km 32) Lab 33) 14 469 34) 242 cm2 35) 28 games 36) The skirt cost $15 + $17 = $32. $15 x 2 = $32, The dress cost $32. $15 + $32 + $32 = $77 Leona spent $77 on the 3 things. 37) 12 x $32 = $384 24 x $13 = $312 $1400 - $384 - $312 = $704 She had $704 left. 5 3 + 1 = 38) 8 4 8 1− 5 = 3 8 8 720 ÷ 3 = 240 240 x 8 = 1920 Andy had 1920 stamps at first. 39) Mr. Lee had 140 x 30 = 4200 cookies. 4200 ÷ 9 = 466 remainder 6 $466 x 3 = $1398 $0.50 x 6 = $3 $1398 + $3 = $1401 She collected $1401 from the sale. 40) 3 - 4 3 1 l = 2250 ml = 2 4 2250 ÷ 9 = 250 ml Each bottle contains 250 ml. 1− = 2 + = , 9 41) 1 9 9 5 3 4 9 5 52 ÷ 4 = 13, 13 x 9 = 117 Daisy has 117 beads. 9 2 x 117 = 26, There are 26 blue beads. 52 – 26 = 26 There are 26 more blue beads than yellow beads. 42) 130 – 40 = 90 1 unit: 90 + 40 + 90 = 220 3 units: 220 x 3 = 660 There are 660 magazines altogether. 43) 90 ÷ 3 = 30, 30 x 7 = 210 210 – 90 = 120 Annie saves $120 every month. 3 years = 36 months 120 x 36 = 4320. She will save $4320 in 3 years. 44) W: 128 x 2 = 256 C: 256 x 3 = 768 Total: 128 + 256 + 768 = 1152 1152 ÷ 8 = 144 There are 1152 ÷ 8 = 144 groups. 45) 90 – 18 – 40 = 32 ∠a = 320 90 – 22 – 40 = 28, ∠b = 280 320 + 280 = 600 The sum of ∠a and ∠b is 600.
  • 140.
    Answers to SemestralAssessment 1 – Mock Paper 2 5 Q1 Q2 6 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 1 4 4 2 3 2 1 1 4 4 1 3 2 2 3 16) 57 700 17) 3 1 18) 18, 36 19) 49 20) 4 13 6 21) 14 right angles 22) 346 23) 106 24) 1 25) $1130 26) 22 110 27) 5 28) $400 29) 36 5 30) $24 31) $219 32) 30th 33) 66 34) 9 794 35) 28 cm 36) 9 1− 4 = 5 9 350 ÷ 5 = 70 70 x 9 = 630 There are 640 people in the zoo. There are 9 4 x 630 = 280 adult in the zoo. 37) 28 x 2 = 14 14 + 28 = 42 There were 42 children in each row. 42 x 40 = 1680 38) 38 x 6 = 228 228 x 25 = 5700 The total number of cards sold was 5700. 39) 96 ÷ 2 = 48 48 x 5 = 240 240 + 48 = 288 They have 288 stickers together. 40) 2200 – 180 = 2020 2020 ÷ 2 = 1010 Thomas has 1010 cards. 1010 + 180 = 1190 Vicky and Stella have 1190 cards in total. 1190 – 50 = 1140 1140 ÷ 2 = 570 Vicky has 570 + 50 = 620cards. 41) 3 x 5 + 5 = 20 5 computers and 5 printers cost as much as 20 printers. 7840 ÷ 20 = 392 392 x 3 = 1176 The cost of a computer was $1176. 4 x 56 = 32 42) 7 5 x 72 = 45 8 45 – 32 = 13 There are 13 more black marbles in the in packet B than packet A. 43) 4 1 x 24 = 6 h 3 2 x 6 = 4h 6 – 4 = 2h Kelvin took 2h less. 2 x 2700 = 1080 He saved $1300 each month. 1080 x 7 = 7560 He saved $9100 in 7 months. 8 44) 5 3 x 7560 = 2835 He spent $2835 for his holidays. 45) 121 = 11 x 11 Each side of the smaller square is 11 cm 11 + 6 = 17 cm Each side of the larger square is 17 cm 17 x 4 = 68 cm The perimeter of the larger square is 68 cm.
  • 141.
    Answers to SemestralAssessment 1 – Mock Paper 3 4 Q1 Q2 3 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 3 1 2 1 2 3 1 4 1 3 2 4 3 3 4 16) 17 088 17) 600 18) 4 19) 220 cm 20) 98 425 21) 63 22) 1 23) 3 24) A =36, B = 13 7 , 3 2 , 2 1 , 6 111 25) 60 26) 2270 27) 56 28) 6 1 29) $37.5 30) 24 31) 52 cm 32) 4.2 l 33) 50 years old 34) 9 cm 35) 12 36) 8 units: 72 cm, 1 unit: 72 ÷ 8 = 9 cm The breadth of the rectangle is 8 cm. 8 x 3 = 24 cm The length of the rectangle is 24 cm Area of rectangle is 8 x 24 = 192 cm2. 37) 175 x 3 = 525 500 + 1700 + 525 = 2725 Mr. Tan had $2725 at first. 1 + 12 38) Cathy gave Paul 4 1 = 3 1 of her balloons. 1 + 3 Cathy gave away 4 7 of her 1 = 12 balloons. 42 ÷ 7 = 6, 6 x 12 = 72 She had 72 balloons at first. 72 – 42 = 30 She had 30 balloons left. 39) 5 units: 500 1 unit: 500 ÷ 5 = 100 100 x 8 = 800 They had $800 at first. 1 = 4 40) 15 x 4 15 kg 1 kg = 3 4 3 13 kg 13 − 15 = 7 kg 3 4 12 The mass of the basket is 12 7 kg. 41) 3 units: 1360 – 180 – 155 – 155 = 870 1 unit: 870 ÷ 3 = 290 290 + 155 + 180 = 625 Michael collected 625 stamps. 42) 14 - 6 = 8 8 x 50 = 400 cents 400 ÷ 2 = 200 cents 200 ÷ 20 = 10 coins There are 10 twenty-cent coins in box B. 43) 100 ÷ 4 = 25 25 x 3 = 75 Now basket A has 75 oranges and basket B has 25 oranges. 75 + 20 – 35 = 60 Basket A had 60 oranges at first. 100 – 60 = 40 Basket B had 40 oranges at first. 5 = 8 44) 1 - 8 3 15 ÷ 3 = 5 5 x 8 = 40 There were 40 girls and 40 boys in the competition. 5 4 x 40 = 32 32 boys were eliminated. 45) 8 x $12 = $96 8 + 2 = 10 10 tickets were sold together at $96. 53 ÷ 10 = 5 remainder 3 $96 x 5 = $480 $12 x 3 = $36 $480 + $36 = $516 The total cost was $516.
  • 142.
    Answers to SemestralAssessment 1 – Mock Paper 4 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 1 3 4 2 1 3 1 4 2 3 2 2 1 1 3 16) 81 17) 378 18) 47730 19) 49 950 20) 2 boxes, 3 11 34) 170 cm 35) $961 4 24) 13 8 tins 21) 7/9 22) 413 23) 34 degrees 24) $3720 25) 1, 3, 5, 9, 15, 45 26) 33 200 27) 7 920 28) a. 3549, b.11 863 29) 135 30) 36 cm 13 32) 20 31) 47 20 1 33) 36 36) $3767 37) $13.20 38) 270 39) $1424 40) 8 97 litres 41) 5625 cm2 42) $.40 43) $4635 44) 513 45) 99981 cm2 Answers to Semestral Assessment 1 – Mock Paper 5 6 Q1 Q2 5 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 4 3 1 2 4 2 3 1 1 4 2 3 2 1 3 16) A=5, B=8 17) 55 cm2 18) 24 087 19) 846 20) CF 21) 103 22) 35o 23) 7 1,2,3,6,7,9,14,21,42,63,126 3 25) 58 20 26) 36 27) 317 28) 512 29) - 30) 2970 31) 66 32) 84 33) 30574 34) 28 35) 13 35 36) 159 cm 37) 750 38) $289 39) 17.5 litres 40) 5 months 41)a. 1 , b. 7 42) 24 367 cm2 43) $800 44) $25 45) 50 cows 4 12
  • 143.
    Answers to SemestralAssessment 2: Mock Paper 1 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 2 1 4 3 4 1 3 2 4 1 3 4 2 2 3 16) 500 17) 85 800 18) 34796 19) 12.61 20) 40 776 21) 150 22) 2 2 23) AE and CD 24) 0.76 25) 1.59 m 9 26) 64 m 27) 0.09 28) 60 29) 2.35, 2.032, 13 9 0.245, 0.235, 0.198 1 30) 4 31) 8.55 p.m. 32) 63 33) $24.45 34) 54 cm2 35) 36 36) 236 + 88 = 324 She sold 324 apples on Saturday. 236 + 324 = 560 The number of fruits sold on Saturday was 560. 560 ÷ 2 = 280 She sold 280 fruits on Sunday. 560 + 280 = 840 She sold 840 fruits on the two days. 37) His mother Jack 30 years old 30 ÷ 2 = 15 Jack will 15 years old when his mother’s age is thrice Jack’s age. In15 – 9 = 6 years’ time, the age of Jack’s mother is thrice his age 38) 780 x 2 =1560 John has 1560 stickers. 780 + 1560 = 2340 They have 2340 stickers together. 2340 ÷ 2 = 1170 Each has 1170 stickers if they share equally. 1560 – 1170 = 390 John must give Mary 390 stickers. 39) 6 – 2.24 = 3.76 She used 3.76 kg of sugar to bake 8 cakes. 3.76 ÷ 8 = 0.47 kg She used 0.47 kg for each cake. 40) 4 3 - 8 1 5 = 8 5 = 8 1 - 8 3 5 of water in the pail is 40 litres, 8 8 3 of the pail hadn’t been filled up yet. 5 units: 40 l 1 unit: 40 l ÷ 5 = 8 l 3 units: 8 l x 3 = 24 l 16 l of water was needed to fill up the pail. 1 + 15 41) 5 7 = 3 2 1 - 3 2 1 = 3 1 of the book is 40 pages. 3 40 x 3 = 120 There were 120 pages in the books. 42) There are 18 chickens. 43) 1800 – 700 = 1100 X= 1100 ÷ 2 = 550 44) $160 x 3 = $480 The cost of 9 skirts and 15 dresses is $480. The cost of 9 skirts and 13 dresses is $457. $480 – 434 = $46 The cost of 2 dresses is $46. $46 ÷ 2 = $23 The cost of a dress is $23. 45) 90 ÷ 10 = 9 The breadth of the small rectangular is 9 cm. 9 x 2 = 18 The length of the small rectangular is 18 cm. 9 x 18 = 162 The area of the small rectangular is 162 cm2.
  • 144.
    Answers to SemestralAssessment 2: Mock Paper 2 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 1 3 3 1 2 4 4 2 3 2 4 3 2 3 1 16) 7080 17) 28 18) 45 19) 44.13 20) 16 14 0 7 7 , 9 21) 18 15 22) 280 23) 15 7 , 18 13 24) 52 25) 610 26) 5kg 27) 20 29 28) 12 times 29) 40 30) 10.55 a.m. 31) AD and CE 32) $66 33) 8 34) 104 cm 35) $52 36) 7 x 12 = 84, 95 – 84 =11 Mrs. Ho’s ticket was $11. 40) 3 x 3 + 7 = 16 3 car toys and 7 dolls cost as much as 16 dolls. $544 ÷ 16 = $34, A doll cost $34. 34 x 3 = $102, A toy car cost $102. A toy car and a doll cost $34 + $102 = $136. 1 , 1 - 8 37) 0.5 = 2 3 - 2 1 = 8 1 8 1 of the beads in the box are red. 3 - 8 1 8 2 , 2 units: 40 beads, = 8 1 unit: 40 ÷ 2 = 20 8 units: 20 x 8 = 160, There are 160 beads in the box. 38) Luna George 880 Tim 880 ÷ 11 = 80, Tim has 80 stamps. 80 x 8 = 640, Luna has 640 stamps. 39) 23.65 – 4.65 = 19 19 x 8 = 152. The number is 152. 42) 1800 - 720 = 1080, 1080 ÷ 3 = 360 b is 360. 360 x 2 = 720, ∠a is 720. 41) Jenifer Liz $635 Daniel $635 – $50 = $585, $585 ÷ 13 = $45, $45 x 3 = $135, Liz spent $135 and had $135 left. $135 + $135 = $270, Liz had $270 at first. 43) 18 x 12 = 216, 216 + 15 = 221 Daisy had $221 at first. 12 – 3 = 9 Each magazine cost $9 during the fun fair. 221 ÷ 9 = 24 remainder 5. 24 – 18 = 6 She could buy 6 more magazines during the fun fair with the original amount of money. 44) 5 + 7 = 12 With 12 more stickers, each friend would be given 2 more stickers. 12 ÷2 = 6, There are 6 friends. 6 x 7 = 42, 42 + 5 = 47 Carol had 47 stickers at first. 45) $14.40 x 3 = $43.20, Jerry spent $43.20 from Monday to Wednesday. $32.60 x 3 = $97.80, He spent $97.80 from Friday to Sunday. $43.20 + $25.80 + $97.80 = $166.80, He spent $166.80 for the whole week. $166.80 + 50 = $216.80, Jerry had $216.80 at first.
  • 145.
    Answers to SemestralAssessment 2: Mock Paper 3 3 Q1 Q2 2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 1 3 3 2 2 3 2 3 4 2 1 1 4 2 1 16) 8000 17) 1120 18) 0.532 2 14 1 1 0.452 65 20) 330 19) 12 21) 34 000 22) 1.4 cm 23) 24 13 24) 8 25) $4 26) $425 27) (a) BC, (b) AB 28) 9 29) $7 30) 320 cm2 31) 100 32) 40 cm 33) school 34) ∠CDE = 650 and ∠ABG = 180 35) $1050 36) $3.75 + $7.55 = $11.3, The belt cost $11.3. $3.75 x 6 = $22.5, The shirt cost $22.5. $3.75 + $11.3 + $22.5 = $37.55 Tim paid $37.55 altogether. 37) $4 + $2 = $6, $4 + $6 = $10 A bowl and a spoon cost $10 together. $320 ÷ $10 = 32 Andy bought 32 bowls and 32 spoons. $2 x 32 = 64 He spent $64 more on bowls than on spoons. 38) 49 + 86 = 135 After Leona gave 86 cards to Jimmy, each of them had 133 cards. 135 + 86 = 221, Leona had 221 cards at first. 4 + 3 39) 9 1 = 9 7 , 9 7 of her money was spent. 1 unit: $450 ÷ 9 = $50 2 units: $50 x 2 = $100,She had $100 left. 2 x 350 = 140 There are 140 blue marbles in the box. 7 40) 5 2 x 350 = 100 There are 100 red marbles in the box. 1 x 100 = 25 7 3 x 140 = 60, 4 60 + 25 = 85, 85 marbles are removed from the box. 350 – 85 = 265 There are 265 marbles left in the box. 41) 3 x 3 cm = 9 cm The length of the bigger square is 9 cm. 3 cm x 3 cm = 9 cm2 9 cm x 9 cm = 81 cm2 9 cm2 + 81 cm2 = 90 cm2 The area of the figure is 90 cm2. 42) 1 unit: 15 ÷ 5 = 3 cm, 9 units: 3 x 9 = 27 cm, Ribbon B is 27 cm long. 43) 2 units: $72 1 unit: $72 ÷ 2 = $36 Nancy had $36 at first. $36 x 5 = $180 Mandy had $180 at first. 44) $210 - $25 + $19 = $204, $204 ÷ 3 = $68 The dress cost $68. $68 - $19 = $49, The wallet cost $49. 45) Area of A = Area of B The length of A = The length of the larger square = 9 cm. The breadth of A = The length of the smaller square = 6 cm 9 + 6 = 15 cm The length of the largest square is 15 cm 15 x 15 = 225 cm2 The area of the figure is 225 cm2.
  • 146.
    Answers to SemestralAssessment 2: Mock Paper 4 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 3 3 2 1 2 4 1 2 4 3 2 4 1 3 4 16) 89 18) 14 079 19) 59.22 20) 0.49 8 14 2 3 17) 20 21) 16.61 22) 0.057, 0.075, 0.507, 0.705 23) 24 24) 15 25) 2.08 m 26) $4.25 27) $690 28) 5 h 30 min 29) 64 cm 30) 1300 31) 900 32) $149.5 33) 84 cm 34) 8 days 35) 7.05 p.m. 36) 1 unit: $1396 ÷ 4 = $349 9 units: $349 x 9 = $3141 Laura has $3141. 37) 1 unit : $25 - $12 = $13, Fred had $13 at first. $13 x 2 = $26, Mary had $26 at first. $13 + $26 = $39, They had $39 at first. 38) 5 + 2 x 2 = 9 2 jeans and 5 shirts cost as much as 9 shirts. $216 ÷ 9 = $24 The shirt cost $24. $24 x 2 = $48. The jean cost $48. 39) 13 x 4 = 52 cm The perimeter of the square is 52 cm. 13 + 4 = 17 cm The length of the rectangle is 17 cm. 17 x 2 = 34, 52 – 34 = 18, 18 ÷ 2 = 9 cm The breadth of the rectangle is 9 cm. 17 x 9 = 153 cm2 The area of the rectangle is 153 cm2. 40) 3 units: 48 x 2 = 96 paper clips Jane had 96 paper clips more than Taylor. 1 unit: 96 ÷ 3 = 32 Taylor had 32 paper clips after giving 48 ones to Jane. 32 + 48 = 80, Taylor had 80 paper clips at first. 41) 33 m2 – 8 m2 = 25 m2 25 m2 x 4 = 100 m2 The area of the square is 100 m2. 100 = 10 x 10 The length of the square is 10 m. 42) 5 x $4.25 = $21.25 3 x $2.7 = $8.1 $21.25 + $8.7 = $29.35 The usual price for 5 boxes of biscuits and 3 boxes of oranges is $29.35. $29.35 - $23.89 = $5.46 Daisy saves $5.46. 43) 900 ml = 0.9 l 4 bottles of water: 0.9 x 4 = 3.6 l Mango juice: 3.6 + 0.45 = 4.05 l Each glass: 4.05 ÷ 9 = 0.45 l 44) $3.8 x 4 = $15.2 8 pens and 4 erasers cost $15.2. $35 – $15.2 = $19.8 2 umbrellas cost $19.8. $19.8 ÷ 2 = $9.9 The umbrella cost $9.9. 45) 80 – 8 = 72 cm 48 – 8 = 40 cm 40 x 72 = 2880 cm2 The covered area is 2880 cm2. 48 x 80 = 3840 cm2 The area of the cardboard is 3840 cm2. 3840 – 2880 = 960 cm2 The area that is not covered is 960 cm2.
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    Answers to SemestralAssessment 2: Mock Paper 5 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 1 3 4 1 4 1 3 2 1 2 4 3 2 2 3 16) 98 425 17) 25 900 18) 17.81 19) 3 3 11 24) 269 25) 720 s 14 3 1 20) 0.09 21) 8 1 22) 0.0468, 0.0648, 0.4068, 0.864 23) 5 26) 620 27) $108 28) $21.4 29) 133 cm2 30) 47 31) $9.9 32) 9 33) 7 4 34) 30 trees 35) Bus stop 36) Each side of ABCD: 11 cm x 11 cm = 121 cm2. Each side of the shaded square: 4 cm x 4 cm = 16 cm2 11 – 4 = 7 cm, 7 ÷ 2 = 3.5 cm The length of CE is 3.5 cm. 37) 28 – 5.7 = 22.3 kg, Box B is 22.3 kg. 22.3 – 3.8 = 18.5 kg, Box C is 18.5 kg. 28 + 22.3 + 18.5 = 68.8 kg Their total mass is 68.8 kg. 1 = 4 3 38) 1 - 4 , 4 3 x $840 = $630 1 of his Jason had $630 after spending 4 money. 1 - 3 2 1 , 3 = 3 1 x $630 = $210, He had $210 left. 39) $60 x 7 = $420, $60 x 8 = $480 They save $420 + $480 = $900 altogether. 40) 200 cm: 10 breadths of the small rectangle 1 breadth: 200 ÷ 10 = 20 cm 20 x 2 = 40 cm The breadth of the figure is 40 cm. 20 x 3 = 60 cm The length of the figure is 60 cm. 40 x 60 = 2400 cm2 The area of the figure is 2400 cm2. 41) Total number of stickers after Andrew bought 35 more: 89 + 35 = 124 Total number of stickers after Allan lost 18 stickers: 124 – 18 = 106 106 – 8 = 98 98 ÷ 2 = 49, Allan has 49 stickers now. 49 + 8 = 57, Andrew has 57 stickers now. 57 – 35 = 22, Andrew had 22 stickers at first. 42) There are 10 bikes. 43) Figure 2: 2 x 2 = 4, Figure 3: 4 x 4 = 16 Figure 4: 8 x 8 = 64, Figure 5 : 16 x 16 = 256 There are 256 small squares. 44) 3 p.m. – 11.30 a.m. = 3 h 30 min = 1 h + 2h 30 min $0.65 x 5 = $3.25 $2.5 + $3.25 = $5.75 He paid $5.75 a day. $5.75 x 2 = $11.5 He paid $11.5 together. 45) 25 min + 2 hr = 2 hr 25 min Tom took 2 hr 25 min to complete his homework. 3 hr 50 min + 2 hr 25 min = 6 hr 15 min = 375 min 375 ÷ 3 = 125 min = 2 hr 5 min Jimmy took 2 hr 5 min to complete his homework.